Ageing and later life

وَٱللَّهُ خَلَقَكُمۡ ثُمَّ يَتَوَفَّىٰكُمۡۚ وَمِنكُم مَّن يُرَدُّ إِلَىٰٓ أَرۡذَلِ ٱلۡعُمُرِ لِكَيۡ لَا يَعۡلَمَ بَعۡدَ عِلۡمࣲ شَيۡـًٔاۚ إِنَّ ٱللَّهَ عَلِيمࣱ قَدِيرࣱ‏

It is God who has created you and in time will cause you to die. Some of you will be reduced, in old age, to a most abject state, so that, after having knowledge, they will know nothing at all: God is truly all knowing and all powerful

۞ٱللَّهُ ٱلَّذِي خَلَقَكُم مِّن ضَعۡفࣲ ثُمَّ جَعَلَ مِنۢ بَعۡدِ ضَعۡفࣲ قُوَّةࣰ ثُمَّ جَعَلَ مِنۢ بَعۡدِ قُوَّةࣲ ضَعۡفࣰ ا وَشَيۡبَةࣰۚ يَخۡلُقُ مَا يَشَآءُۚ وَهُوَ ٱلۡعَلِيمُ ٱلۡقَدِيرُ

It is God who creates you weak, then gives you strength, then weakness after strength, together with your grey hair: He creates what He will; He is the All Knowing, the All Powerful

يَٰٓأَيُّهَا ٱلنَّاسُ إِن كُنتُمۡ فِي رَيۡبࣲ مِّنَ ٱلۡبَعۡثِ فَإِنَّا خَلَقۡنَٰكُم مِّن تُرَابࣲ ثُمَّ مِن نُّطۡفَةࣲ ثُمَّ مِنۡ عَلَقَةࣲ ثُمَّ مِن مُّضۡغَةࣲ مُّخَلَّقَةࣲ وَغَيۡرِ مُخَلَّقَةࣲ لِّنُبَيِّنَ لَكُمۡۚ وَنُقِرُّ فِي ٱلۡأَرۡحَامِ مَا نَشَآءُ إِلَىٰٓ أَجَلࣲ مُّسَمࣰّ ى ثُمَّ نُخۡرِجُكُمۡ طِفۡلࣰ ا ثُمَّ لِتَبۡلُغُوٓاْ أَشُدَّكُمۡۖ وَمِنكُم مَّن يُتَوَفَّىٰ وَمِنكُم مَّن يُرَدُّ إِلَىٰٓ أَرۡذَلِ ٱلۡعُمُرِ لِكَيۡلَا يَعۡلَمَ مِنۢ بَعۡدِ عِلۡمࣲ شَيۡـࣰٔ اۚ وَتَرَى ٱلۡأَرۡضَ هَامِدَةࣰ فَإِذَآ أَنزَلۡنَا عَلَيۡهَا ٱلۡمَآءَ ٱهۡتَزَّتۡ وَرَبَتۡ وَأَنۢبَتَتۡ مِن كُلِّ زَوۡجِۭ بَهِيجࣲ‏

People, [remember,] if you doubt the Resurrection, that We created you from dust, then a drop of fluid, then a clinging form, then a lump of flesh, both shaped and unshaped: We mean to make Our power clear to you. Whatever We choose We cause to remain in the womb for an appointed time, then We bring you forth as infants and then you grow and reach maturity. Some die young and some are left to live on to such an age that they forget all they once knew. You sometimes see the earth lifeless, yet when We send down water it stirs and swells and produces every kind of joyous growth

ٱلۡحَمۡدُ لِلَّهِ ٱلَّذِي وَهَبَ لِي عَلَى ٱلۡكِبَرِ إِسۡمَٰعِيلَ وَإِسۡحَٰقَۚ إِنَّ رَبِّي لَسَمِيعُ ٱلدُّعَآءِ

Praise be to God, who has granted me Ishmael and Isaac in my old age: my Lord hears all requests

قَالَ أَبَشَّرۡتُمُونِي عَلَىٰٓ أَن مَّسَّنِيَ ٱلۡكِبَرُ فَبِمَ تُبَشِّرُونَ

He said, ‘How can you give me such news when old age has come to me? What sort of news is this?’

أَيَوَدُّ أَحَدُكُمۡ أَن تَكُونَ لَهُۥ جَنَّةࣱ مِّن نَّخِيلࣲ وَأَعۡنَابࣲ تَجۡرِي مِن تَحۡتِهَا ٱلۡأَنۡهَٰرُ لَهُۥ فِيهَا مِن كُلِّ ٱلثَّمَرَٰتِ وَأَصَابَهُ ٱلۡكِبَرُ وَلَهُۥ ذُرِّيَّةࣱ ضُعَفَآءُ فَأَصَابَهَآ إِعۡصَارࣱ فِيهِ نَارࣱ فَٱحۡتَرَقَتۡۗ كَذَٰلِكَ يُبَيِّنُ ٱللَّهُ لَكُمُ ٱلۡأٓيَٰتِ لَعَلَّكُمۡ تَتَفَكَّرُونَ

Would any of you like to have a garden of palm trees and vines, graced with flowing streams and all kinds of produce, which, when you are afflicted with old age and feeble offspring, is struck by a fiery whirlwind and burnt down? In this way God makes His messages clear to you, so that you may reflect on them

And God has created you when you were nothing then He takes you in death when your terms of life are concluded; and there are some among you who are relegated to the most abject stage of life that is the most diminished because of old-age and senility so that he knows nothing after having possessed some knowledge. ‘Ikrima said ‘Whoever recites the Qur’ān will not come to such a predicament’. God is Knowing of how to manage the affairs of His creation Powerful in doing what He will.

And Allah created you and then He will cause you to die; and among you there are some who are sent back to senility, so that they know nothing after having known (much). Truly, Allah is Knowing, capable of all things (70) In Man there is a Lesson Allah tells us that He is controlling the affairs of His servants. He is the One Who created them out of nothing, then He will cause them to die. But there are some of them that He allows to grow old, which is a physical weakness, as Allah says: اللَّهُ الَّذِي خَلَقَكُم مِّن ضَعْفٍ ثُمَّ جَعَلَ مِن بَعْدِ ضَعْفٍ قُوَّةً (Allah is He Who created you in (a state of) weakness, then gave you strength after weakness, then after strength gave (you) weakness)(30:54) لِكَيْ لَا يَعْلَمَ بَعْدَ عِلْمٍ شَيْئًا (so that they know nothing after having known.) meaning, after he knew things, he will reach a stage where he knows nothing because of weakn

O people, if you are in doubt about the Uprising, surely We created you of dust, then of a sperm drop, then of a blood clot, then of a lump of flesh, fully created and not fully created, that We might make clear to you. The composition of the Adamic body in the first creation is a clear argument against the deniers of the Uprising. He is saying, “I am the Lord who created a body and figure with such comeliness, a stature and form with such beauty, from that feeble sperm drop in that firm settledness. He says, “Did We not create you of feeble water, then put it in a firm settledness?” [77:20-21]. If you ponder this body, you will find an exemplar of all the created and newly arrived things in the celestial and terrestrial worlds. Just as He arranged the seven spheres in heaven, so also He composed seven parts in this body-water and dust, and then flesh, skin, veins, sinews, and bones. Jus

God is the One Who created you from a state of weakness from a ‘base fluid’ cf. Q. 328 then He ordained after a second weakness which is the weakness of the period of childhood strength that is the strength of youth then after strength He appointed weakness again and grey hair the weakness of old age and the grey hairs of decrepitude read vocalised as du‘f ‘weakness’ in all three places. He creates what He will of weakness and strength youth and grey hairs and He is the Knower of how to manage His creatures the Omnipotent.

Allah is He Who created you in weakness, then gave you strength after weakness, then after strength gave (you) weakness and grey hair. He creates what He wills. And He is the All-Knowing, the All-Powerful (54) The Different Stages of Man Here Allah points out how man passes through different stages of creation, one phase after another. He is originally created from dust, then from a Nutfah, then from a clot, then from a lump of flesh. Then he becomes bones, then the bones are clothed with flesh, then the soul is breathed into him. Then he emerges from his mother's womb, weak and thin and powerless. Then he grows up little by little, until he becomes a child, then he reaches the stage of puberty, then he becomes a young man, which is strength after weakness. Then he starts to get older, reaching middle age, then old age and senility, weakness after strength, so he loses his resolve, pow

O mankind in other words O people of Mecca if you are in doubt about the Resurrection then lo! consider that We have created you that is We have created your origin — Adam — from dust then We created his progeny from a drop a sperm-drop then from a clot congealed blood then from a little lump of flesh mudgha a piece of flesh the size of what one would be able to chew mā yumdagh partly formed shaped complete in form and partly unformed that is uncomplete in form that We may make clear to you the perfect nature of Our power that you might then infer from this initial act of creation the reality of its future restoration. And We establish nuqirru marks a new grammatically independent sentence in the wombs whatever We will for a specified time that is until the time for it to come out then We bring you forth from the bellies of your mothers as infants and then We extend your life that you ma

حَدَّثَنَا آدَمُ بْنُ أَبِي إِيَاسٍ، حَدَّثَنَا شُعْبَةُ، عَنْ عَدِيِّ بْنِ ثَابِتٍ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ يَزِيدَ الأَنْصَارِيَّ، عَنْ أَبِي مَسْعُودٍ الأَنْصَارِيِّ، فَقُلْتُ عَنِ النَّبِيِّ فَقَالَ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏ "‏ إِذَا أَنْفَقَ الْمُسْلِمُ نَفَقَةً عَلَى أَهْلِهِ وَهْوَ يَحْتَسِبُهَا، كَانَتْ لَهُ صَدَقَةً ‏"‏‏.‏

Narrated Abu Mas`ud Al-Ansari:The Prophet (ﷺ) said, "When a Muslim spends something on his family intending to receive Allah's reward it is regarded as Sadaqa for him

حَدَّثَنَا إِسْمَاعِيلُ، قَالَ حَدَّثَنِي مَالِكٌ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ "‏ قَالَ اللَّهُ أَنْفِقْ يَا ابْنَ آدَمَ أُنْفِقْ عَلَيْكَ ‏"‏‏.‏

Narrated Abu Huraira:Allah's Messenger (ﷺ) said, "Allah said, 'O son of Adam! Spend, and I shall spend on you

حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، أَخْبَرَنَا يَحْيَى بْنُ سَعِيدٍ، أَخْبَرَنَا بَهْزُ بْنُ حَكِيمٍ، حَدَّثَنِي أَبِي، عَنْ جَدِّي، قَالَ قُلْتُ يَا رَسُولَ اللَّهِ مَنْ أَبَرُّ قَالَ ‏"‏ أُمَّكَ ‏"‏ ‏.‏ قَالَ قُلْتُ ثُمَّ مَنْ قَالَ ‏"‏ أُمَّكَ ‏"‏ ‏.‏ قَالَ قُلْتُ ثُمَّ مَنْ قَالَ ‏"‏ أُمَّكَ ‏"‏ ‏.‏ قَالَ قُلْتُ ثُمَّ مَنْ قَالَ ‏"‏ ثُمَّ أَبَاكَ ثُمَّ الأَقْرَبَ فَالأَقْرَبَ ‏"‏ ‏.‏ قَالَ وَفِي الْبَابِ عَنْ أَبِي هُرَيْرَةَ وَعَبْدِ اللَّهِ بْنِ عُمَرَ وَعَائِشَةَ وَأَبِي الدَّرْدَاءِ ‏.‏ قَالَ أَبُو عِيسَى وَبَهْزُ بْنُ حَكِيمٍ هُوَ ابْنُ مُعَاوِيَةَ بْنِ حَيْدَةَ الْقُشَيْرِيُّ ‏.‏ وَهَذَا حَدِيثٌ حَسَنٌ ‏.‏ وَقَدْ تَكَلَّمَ شُعْبَةُ فِي بَهْزِ بْنِ حَكِيمٍ وَهُوَ ثِقَةٌ عِنْدَ أَهْلِ الْحَدِيثِ وَرَوَى عَنْهُ مَعْمَرٌ وَالثَّوْرِيُّ وَحَمَّادُ بْنُ سَلَمَةَ وَغَيْرُ وَاحِدٍ مِنَ الأَئِمَّةِ ‏.‏

Bahz bin Hakim narrated from his father, from his grandfather who said:"I said: 'O Messenger of Allah! Who most deserves(my) reverence?' He said: 'Your mother.'" He said: "I said: 'Then who?' He said: 'Your mother.'" He said: "I said: 'Then who?' He said: 'Your mother.'" He said: "I said: 'Then who?' He said: 'Then your father, then the nearest relatives, then the nearest relatives

حَدَّثَنَا أَحْمَدُ بْنُ مُحَمَّدٍ، أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ، عَنِ الْمَسْعُودِيِّ، عَنِ الْوَلِيدِ بْنِ الْعَيْزَارِ، عَنْ أَبِي عَمْرٍو الشَّيْبَانِيِّ، عَنِ ابْنِ مَسْعُودٍ، قَالَ سَأَلْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم فَقُلْتُ يَا رَسُولَ اللَّهِ أَىُّ الأَعْمَالِ أَفْضَلُ قَالَ ‏"‏ الصَّلاَةُ لِمِيقَاتِهَا ‏"‏ ‏.‏ قُلْتُ ثُمَّ مَاذَا يَا رَسُولَ اللَّهِ قَالَ ‏"‏ بِرُّ الْوَالِدَيْنِ ‏"‏ ‏.‏ قُلْتُ ثُمَّ مَاذَا يَا رَسُولَ اللَّهِ قَالَ ‏"‏ الْجِهَادُ فِي سَبِيلِ اللَّهِ ‏"‏ ‏.‏ ثُمَّ سَكَتَ عَنِّي رَسُولُ اللَّهِ صلى الله عليه وسلم وَلَوِ اسْتَزَدْتُهُ لَزَادَنِي ‏.‏ قَالَ أَبُو عِيسَى وَهَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ ‏.‏ رَوَاهُ الشَّيْبَانِيُّ وَشُعْبَةُ وَغَيْرُ وَاحِدٍ عَنِ الْوَلِيدِ بْنِ الْعَيْزَارِ وَقَدْ رُوِيَ هَذَا الْحَدِيثُ مِنْ غَيْرِ وَجْهٍ عَنْ أَبِي عَمْرٍو الشَّيْبَانِيِّ عَنِ ابْنِ مَسْعُودٍ ‏.‏ وَأَبُو عَمْرٍو الشَّيْبَانِيُّ اسْمُهُ سَعْدُ بْنُ إِيَاسٍ ‏.‏

Ibn Mas'ud said:"I asked the Messenger of Allah: 'O Messenger of Allah! Which is the most virtuous of deeds?' He said: 'Salat during its appropriate time.' I said: 'Then what, O Messenger of Allah?' He said: 'Being dutiful to one's parents.' I said: 'Then what, O Messenger of Allah?' He said: 'Jihad in the cause of Allah.' Then the messenger of Allah was silent, and if I had asked him more, he would have told me more

ورضواني وجنتي امكثوا فيها خالدين مخلدين ثم يقول لأهل النار كم لبثتم في الأرض عدد سنين قالوا لبثنا يوما أو بعض يوم فيقول بئسما اتجرتم في يوم أو بعض يوم سخطي ومعصيتي وناري امكثوا فيها خالدين مخلدين وخرج الحاكم من حديث عبد الجبار بن وهب أنبأنا سعيد بن طارق عن أبيه عن النبي صلى الله عليه وسلم قال نعمت الدار الدنيا لمن تزود منها لآخرته حتى يرضي ربه وبئست الدار لمن صدته عن آخرته وقصرت به عن رضا ربه وإذا قال العبد قبح الله الدنيا قالت الدنيا قبح الله أعصانا لربه وقال صحيح الإسناد وخرجه العقيلي وقال عبد الجبار بن وهب مجهول وحديثه غير محفوظ قال وهذا الكلام يروي عن علي من قوله وقول علي خرجه ابن أبي الدنيا عنه بإسناد فيه نظر أن عليا سمع رجلا يسب الدنيا فقال إنها لدار صدق لمن صدقها ودار عافية لمن فهم عنها ودار غني لمن تزود منها مسجد أحباب الله ومهبط وحيه ومصلى ملائكته ومتجر أوليائه اكتسبوا فيها الرحمة وربحوا فيها الجنة فمن ذا يذم الدنيا وقد آذنت بفراقها ونادت بعيبها نعت نفسها وأهلها فمثلت ببلائها ال

وقال مالك رحمه الله ما كان رجل صادقا في حديثه ولا يكذب إلا متع بعقله ولم يصبه مع الهرم آفة ولا خرف

وأما الفدية فتجب على الحامل والمرضع إذا أفطرتا خوفا على ولديهما لكل يوم مد حنطة لمسكين واحد مع القضاء والشيخ الهرم إذا لم يصم تصدق عن كل يوم مدا

وفي وصية لقمان لابنه يا بني اتق المرأة السوء فإنها تشيبك قبل الشيب واتق شرار النساء فإنهن لا يدعون إلى خير وكن من خيارهن على حذر

النوع الثاني من إزالة الفضلات: أجزاء تحذف، مثل قص الشارب، ونتف الإبط، وحلق العانة، وقص الأظافر. ويكره نتف الشيب، ويستحب خضابه.

فإن بقيت رأيت الشيب راغمة % وفي التفرق ما يقضي من العبر

A randomized study of a multidisciplinary program to intervene on geriatric syndromes in vulnerable older people who live at home (Dutch EASYcare Study).: Background: The effectiveness of community-based geriatric intervention models for vulnerable older adults is controversial. We evaluated a problem-based multidisciplinary intervention targeting vulnerable older adults at home that promised efficacy through better timing and increased commitment of patients and primary care physicians. This study compared the effects of this new model to usual care. Methods: Primary care physicians referred older people for problems with cognition, nutrition, be

Elder abuse: a systematic review of risk factors in community-dwelling elders.: Objective: to undertake a systematic literature review of risk factors for abuse in community-dwelling elders, as a first step towards exploring the clinical utility of a risk factor framework. Search strategy and selection criteria: a search was undertaken using the MEDLINE, CINAHL, EMBASE and PsycINFO databases for articles published in English up to March 2011, to identify original studies with statistically significant risk factors for abuse in community-dwelling elders. Studies concerning s

A Multicomponent Exercise Intervention that Reverses Frailty and Improves Cognition, Emotion, and Social Networking in the Community-Dwelling Frail Elderly: A Randomized Clinical Trial.: Background: Frailty can be an important clinical target to reduce rates of disability. Objective: To ascertain if a supervised-facility multicomponent exercise program (MEP) when performed by frail older persons can reverse frailty and improve functionality; cognitive, emotional, and social networking; as well as biological biomarkers of frailty, when compared with a controlled population that received no training. Design: This is an interventional, controlled, simple randomized study. Researche

Interventions to Reduce Ageism Against Older Adults: A Systematic Review and Meta-Analysis.: Background. Research has found a strong link between ageism, in the form of negative stereotypes, prejudice, and discrimination toward older people, and risks to their physical and mental health. Little is known, however, about the effectiveness of strategies to reduce ageism. Objectives. To assess the relative effects of 3 intervention types designed to reduce ageism among youths and adults-education, intergenerational contact, and combined education and intergenerational contact-by conducting

Factors associated with frailty in older people: an umbrella review.: Background: The number of frail older people is increasing worldwide, and all countries will be confronted with their growing needs for healthcare and social support. The aim of this umbrella review was to summarize the evidence on the factors associated with frailty in older people, using a socioecological approach. Methods: PubMed (MEDLINE), Scopus, Web of Science, ScienceDirect, Hinari (research4life), and the Trip database were systematically searched up to April 2023. Systematic reviews of

Iridescent Life Course: LGBTQ Aging Research and Blueprint for the Future - A Systematic Review.: Background: LGBTQ* (lesbian, gay, bisexual, trans, and queer) older adults are demographically diverse and growing populations. In an earlier 25-year review of the literature on sexual orientation and aging, we identified four waves of research that addressed dispelling negative stereotypes, psychosocial adjustment to aging, identity development, and social and community-based support in the lives of LGBTQ older adults. Objectives: The current review was designed to develop an evidence base for

Cellular allostatic load is linked to increased energy expenditure and accelerated biological aging.

Stress triggers anticipatory physiological responses that promote survival, a phenomenon termed allostasis. However, the chronic activation of energy-dependent allostatic responses results in allostatic load, a dysregulated state that predicts functional decline, accelerates aging, and increases mortality in humans. The energetic cost and cellular basis for the damaging effects of allostatic load have not been defined. Here, by longitudinally profiling three unrelated primary human fibroblast lines across their lifespan, we find that chronic glucocorticoid exposure increases cellular energy expenditure by ∼60%, along with a metabolic shift from glycolysis to mitochondrial oxidative phosphorylation (OxPhos). This state of stress-induced hypermetabolism is linked to mtDNA instability, non-linearly affects age-related cytokines secretion, and accelerates cellular aging based on DNA methylat…

matched on Aging (mesh)

Effect of Cytomegalovirus on the Immune System: Implications for Aging and Mental Health.

Human cytomegalovirus (HCMV) is a major modulator of the immune system leading to long-term changes in T-lymphocytes, macrophages, and natural killer (NK) cells among others. Perhaps because of this immunomodulatory capacity, HCMV infection has been linked with a host of deleterious effects including accelerated immune aging (premature mortality, increased expression of immunosenescence-linked markers, telomere shortening, speeding-up of epigenetic "clocks"), decreased vaccine immunogenicity, and greater vulnerability to infectious diseases (e.g., tuberculosis) or infectious disease-associated pathology (e.g., HIV). Perhaps not surprisingly given the long co-evolution between HCMV and humans, the virus has also been associated with beneficial effects, such as increased vaccine responsiveness, heterologous protection against infections, and protection against relapse in the context of leu…

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Platelet factors attenuate inflammation and rescue cognition in ageing.

Identifying therapeutics to delay, and potentially reverse, age-related cognitive decline is critical in light of the increased incidence of dementia-related disorders forecasted in the growing older population1. Here we show that platelet factors transfer the benefits of young blood to the ageing brain. Systemic exposure of aged male mice to a fraction of blood plasma from young mice containing platelets decreased neuroinflammation in the hippocampus at the transcriptional and cellular level and ameliorated hippocampal-dependent cognitive impairments. Circulating levels of the platelet-derived chemokine platelet factor 4 (PF4) (also known as CXCL4) were elevated in blood plasma preparations of young mice and humans relative to older individuals. Systemic administration of exogenous PF4 attenuated age-related hippocampal neuroinflammation, elicited synaptic-plasticity-related molecular c…

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Does older mean flexible? Psychological flexibility and illness cognitions in chronic medical conditions - the moderating effect of age.

Adjustment to a Chronic Medical Condition (CMC) is associated with developing hypotheses regarding one's symptoms, known as illness cognition (IC). Aging is associated with a higher rate of CMC. We assessed the effects of aging and psychological flexibility (PF)-one's ability to be open to change, and to alter or persist in behaviors according to environmental circumstances - on IC development in CMC. In a cross-sectional study of hospitalized patients with CMC, 192 patients in four age groups: younger (<50), midlife (50-59), young old (60-69), and elderly (≥70) completed questionnaires sampling IC, PF and demographics. Younger participants reported less helplessness (IC) while lower scores in one PF component (perceiving reality as multifaceted) were reported by the elderly (≥70); older age was associated with a more fixed, narrow perception of reality. Both effects remained significant…

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Genetic perturbation of AMP biosynthesis extends lifespan and restores metabolic health in a naturally short-lived vertebrate.

During aging, the loss of metabolic homeostasis drives a myriad of pathologies. A central regulator of cellular energy, the AMP-activated protein kinase (AMPK), orchestrates organismal metabolism. However, direct genetic manipulations of the AMPK complex in mice have, so far, produced detrimental phenotypes. Here, as an alternative approach, we alter energy homeostasis by manipulating the upstream nucleotide pool. Using the turquoise killifish, we mutate APRT, a key enzyme in AMP biosynthesis, and extend the lifespan of heterozygous males. Next, we apply an integrated omics approach to show that metabolic functions are rejuvenated in old mutants, which also display a fasting-like metabolic profile and resistance to high-fat diet. At the cellular level, heterozygous cells exhibit enhanced nutrient sensitivity, reduced ATP levels, and AMPK activation. Finally, lifelong intermittent fasting…

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Exercise preserves physical fitness during aging through AMPK and mitochondrial dynamics.

Exercise is a nonpharmacological intervention that improves health during aging and a valuable tool in the diagnostics of aging-related diseases. In muscle, exercise transiently alters mitochondrial functionality and metabolism. Mitochondrial fission and fusion are critical effectors of mitochondrial plasticity, which allows a fine-tuned regulation of organelle connectiveness, size, and function. Here we have investigated the role of mitochondrial dynamics during exercise in the model organism Caenorhabditis elegans. We show that in body-wall muscle, a single exercise session induces a cycle of mitochondrial fragmentation followed by fusion after a recovery period, and that daily exercise sessions delay the mitochondrial fragmentation and physical fitness decline that occur with aging. Maintenance of proper mitochondrial dynamics is essential for physical fitness, its enhancement by exer…

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Contextual modifiers of healthspan, lifespan, and epigenome in mice under chronic social stress.

Sustained life stress and low socioeconomic status are among the major causes of aging-related diseases and decreased life expectancy. Experimental rodent models can help to identify the underlying mechanisms, yet very few studies address the long-term consequences of social stress on aging. We conducted a randomized study involving more than 300 male mice of commonly used laboratory strains (C57BL/6J, CD1, and Sv129Ev) chosen for the spontaneous aggression gradient and stress-vulnerability. Mice were exposed to a lifelong chronic psychosocial stress protocol to model social gradients in aging and disease vulnerability. Low social rank, inferred based on a discretized aggression index, was found to negatively impact lifespan in our study population. However, social rank interacted with genetic background in that low-ranking C57BL/6J, high-ranking Sv129Ev, and middle-ranking CD1 mice had …

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Association of Adverse Childhood Experiences With Accelerated Epigenetic Aging in Midlife.

Importance: Adverse childhood experiences (ACEs) are associated with the risk of poorer health, and identifying molecular mechanisms may lay the foundation for health promotion in people with ACEs. Objective: To investigate the associations of ACEs with changes in epigenetic age acceleration (EAA), a biomarker associated with various health outcomes in middle-aged adults, in a population with balanced race and sex demographics. Design, setting, and participants: Data for this cohort study were from the Coronary Artery Risk Development in Young Adults (CARDIA) study. Participants in CARDIA underwent 8 follow-up exams from baseline (year 0 [Y0]; 1985-1986) to Y30 (2015-2016), and participant blood DNA methylation information was obtained at Y15 (2000-2001) and Y20 (2005-2006). Individuals from Y15 and Y20 with available DNA methylation data and complete variables for ACEs and covariates we…

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Psychological well-being of midlife women: a structural equation modeling approach.

Objective: Women experience menopause at approximately 50 to 52 years of age, when reproductive aging causes various somatic, psychological, and urogenital symptoms. Women's changing lifestyles and increasing lifespan make it difficult to pinpoint the factors affecting their well-being during menopause, warranting continuous research in this field. Therefore, this study developed a structural equation model, based on the transactional model of stress and coping, to test the significance of positive and negative factors associated with psychological health during menopause. Methods: This study validated a structural equation model based on the empirical data collected using a crosssectional study. We analyzed 300 questionnaire responses completed between May 15 and July 10, 2020, by South Korean middle-aged women (aged 45-60 y) who agreed to participate. The study's structural equation mo…

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Health and Quality of Life Outcomes of Driving Cessation for Older People are More Complex Than We Thought.

Objectives: This study examined whether there are meaningful subgroups of older past drivers who experience better health and quality of life outcomes, and the factors that may contribute to such outcomes. Methods: Data from 127 people aged 56-89 years who were past drivers in a New Zealand longitudinal study of aging was used in cluster analysis. Results: Older past drivers experienced a range of outcomes regarding health and quality of life following driving cessation that clustered into five subgroups, ranging from people with robust outcomes to those with vulnerable health and quality of life. The subgroups were distinguished by economic position, social support, and volunteering. Conclusions: Using methodology to address issues associated with use of aggregated data, there were subgroups of older past drivers who had better health and wellbeing outcomes following driving cessation t…

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Neighborhood disadvantage and biological aging biomarkers among breast cancer patients.

Living in a disadvantaged neighborhood is associated with adverse clinical outcomes among breast cancer patients, but the underlying pathway is still unclear. Limited evidence has suggested that accelerated biological aging may play an important role. In this study, using a sub-sample of 906 women with newly diagnosed breast cancer at M.D. Anderson, we examined whether levels of selected markers of biological aging (e.g., allostatic load, telomere length, and global DNA methylation) were affected by neighborhood disadvantage. The Area Deprivation Index was used to determine the neighborhood disadvantage. Based on the median ADI at the national level, the study population was divided into low and high ADI groups. Overall, breast cancer patients from the high ADI group were more likely to be younger and non-Hispanic Black than those from the low ADI group (P < 0.001, respectively). They we…

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Socioeconomic Status, Biological Aging, and Memory in a Diverse National Sample of Older US Men and Women.

Background and objectives: Exposure to socioeconomic disadvantage is associated with early-onset cognitive aging. Biological aging, the progressive loss of system integrity that occurs as we age, is proposed as a modifiable process mediating this health inequality. We examined whether socioeconomic disparities in cognitive aging in mid-to late-life adults is explained by accelerated biological aging similarly across race, ethnicity, and sex/gender. Methods: Data were from a prospective cohort study of the US Health and Retirement Study DNA methylation substudy. Socioeconomic status (SES) was measured from years of education and household wealth at baseline. The extent and pace of biological aging were quantified using 3 DNA methylation measures: PhenoAge, GrimAge, and DunedinPoAm. Cognitive aging was measured from repeated longitudinal assessments of immediate and delayed word recall. La…

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Subjective Nearness-To-Death and Retirement Anxiety Among Older Workers: A Three-Way Interaction With Work Group Identification.

Retirement anxiety represents a major challenge for older workers who hold negative expectations and concerns regarding the consequences of their future retirement. Although prior studies suggest that retirement is an age-related transition that may serve as a reminder that life is nearing its end, little is known about how subjective nearness-to-death is related to retirement anxiety, and the role of work group identification as a boundary condition. The current study draws on terror management and social identity theories to hypothesize and investigate these relationships. A three-way interaction model was tested on a sample of 327 Israeli older workers. We found a positive association between subjective nearness-to-death and retirement anxiety. Further, we demonstrated that the positive relationship between subjective nearness-to-death and retirement anxiety was more prominent for old…

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A healthy lifestyle is positively associated with mental health and well-being and core markers in ageing.

Background: Studies often evaluate mental health and well-being in association with individual health behaviours although evaluating multiple health behaviours that co-occur in real life may reveal important insights into the overall association. Also, the underlying pathways of how lifestyle might affect our health are still under debate. Here, we studied the mediation of different health behaviours or lifestyle factors on mental health and its effect on core markers of ageing: telomere length (TL) and mitochondrial DNA content (mtDNAc). Methods: In this study, 6054 adults from the 2018 Belgian Health Interview Survey (BHIS) were included. Mental health and well-being outcomes included psychological and severe psychological distress, vitality, life satisfaction, self-perceived health, depressive and generalised anxiety disorder and suicidal ideation. A lifestyle score integrating diet, …

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Marital dissolution, marital discord, and C-reactive protein: Results from The Irish Longitudinal Study on Ageing.

Objective: Inflammation is one biological pathway through which marital dissolution and marital discord may increase risk for chronic disease. The present study was conducted to investigate the cross-sectional association between marital dissolution, marital discord, and C-reactive protein (CRP), an indicator of inflammation, in a probability sample of Irish adults aged 50 years or older. Method: Data were drawn from The Irish Longitudinal Study on Ageing. Linear regression analyses were conducted to examine (a) the association between marital dissolution and CRP values (N = 2,545), (b) the association between marital discord and CRP values (N = 1,949), and (c) whether these associations were moderated by gender. Subsequent models adjusted for demographic characteristics and health variables. Results: With respect to marital dissolution, individuals who were separated or divorced had sig…

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Restoring metabolism of myeloid cells reverses cognitive decline in ageing.

Ageing is characterized by the development of persistent pro-inflammatory responses that contribute to atherosclerosis, metabolic syndrome, cancer and frailty1-3. The ageing brain is also vulnerable to inflammation, as demonstrated by the high prevalence of age-associated cognitive decline and Alzheimer's disease4-6. Systemically, circulating pro-inflammatory factors can promote cognitive decline7,8, and in the brain, microglia lose the ability to clear misfolded proteins that are associated with neurodegeneration9,10. However, the underlying mechanisms that initiate and sustain maladaptive inflammation with ageing are not well defined. Here we show that in ageing mice myeloid cell bioenergetics are suppressed in response to increased signalling by the lipid messenger prostaglandin E2 (PGE2), a major modulator of inflammation11. In ageing macrophages and microglia, PGE2 signalling throug…

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GDF15 as a biomarker of ageing.

The ageing process is accompanied by the gradual development of chronic systemic inflammation (inflamm-ageing). Growth differentiation factor 15 (GDF15) is associated with inflammation and known to be a stress-induced factor. The present study aimed to explore the association of GDF15 with ageing. In this cross-sectional study, serum GDF15, hematological parameters, and biomedical parameters were determined in 120 healthy individuals (23-83 years old, males). Three telomere related parameters, including telomere length, telomerase activity, and the expression of human telomerase reverse transcriptase (hTERT) mRNA were also quantified. Our results showed that the older group has a higher levels of GDF15 and lower expression of hTERT mRNA, and PBMC telomerase activity (p < 0.001). In individuals with high GDF15 levels, they were older, and presented with the lower level of hTERT mRNA and T…

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Neuroblast senescence in the aged brain augments natural killer cell cytotoxicity leading to impaired neurogenesis and cognition.

Normal aging is accompanied by escalating systemic inflammation. Yet the potential impact of immune homeostasis on neurogenesis and cognitive decline during brain aging have not been previously addressed. Here we report that natural killer (NK) cells of the innate immune system reside in the dentate gyrus neurogenic niche of aged brains in humans and mice. In situ expansion of these cells contributes to their abundance, which dramatically exceeds that of other immune subsets. Neuroblasts within the aged dentate gyrus display a senescence-associated secretory phenotype and reinforce NK cell activities and surveillance functions, which result in NK cell elimination of aged neuroblasts. Genetic or antibody-mediated depletion of NK cells leads to sustained improvements in neurogenesis and cognitive function during normal aging. These results demonstrate that NK cell accumulation in the aging…

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Middle age as a turning point in mouse cerebral cortex energy and redox metabolism: Modulation by every-other-day fasting.

Normal brain aging is accompanied by intensification of free radical processes and compromised bioenergetics. Caloric restriction is expected to counteract these changes but the underlying protective mechanisms remain poorly understood. The present work aimed to investigate the intensity of oxidative stress and energy metabolism in the cerebral cortex comparing mice of different ages as well as comparing mice given one of two regimens of food availability: ad libitum versus every-other-day fasting (EODF). Levels of oxidative stress markers, ketone bodies, glycolytic intermediates, mitochondrial respiration, and activities of antioxidant and glycolytic enzymes were assessed in cortex from 6-, 12- and 18-month old C57BL/6J mice. The greatest increase in oxidative stress markers and the sharpest decline in key glycolytic enzyme activities was observed in mice upon the transition from young …

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Loneliness, physical activity, and mental health during COVID-19: a longitudinal analysis of depression and anxiety in adults over the age of 50 between 2015 and 2020.

Objective: Loneliness and physical activity are important targets for research into the impact of COVID-19 because they have established links with mental health, could be exacerbated by social distancing policies, and are potentially modifiable. In this study, we aimed to identify whether loneliness and physical activity were associated with worse mental health during a period of mandatory social distancing in the UK. Design: Population-based observational cohort study. Setting: Mental health data collected online during COVID-19 from an existing sample of adults aged 50 and over taking part in a longitudinal study of aging. All had comparable annual data collected between 2015 and 2019. Participants: Three-thousand two-hundred and eighty-one participants aged 50 and over. Measurements: Trajectories of depression (measured by PHQ-9) and anxiety (measured by GAD-7) between 2015 and 2020 …

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Reducing Loneliness Among Aging Adults: The Roles of Personal Voice Assistants and Anthropomorphic Interactions.

The perception of feeling lonely is an influential factor in determining quality of life among aging adults. As the US Census Bureau projects that the number of Americans ages 65 and older will double by 2060, reducing loneliness is imperative. Personal voice assistants (PVAs) such as Amazon's Echo offer the ease-of-use of voice control with a friendly, helpful artificial intelligence. This study aimed to understand the influence of a PVA on loneliness reduction among adults of advanced ages, i.e., 75+, and explore anthropomorphism as a potential underlying mechanism. Participants (N = 16) ages 75 or older used an Amazon Echo PVA for 8 weeks in an independent living facility in the Midwest. Surveys were used to collect information about perceived loneliness, and PVA interaction data was recorded and analyzed. Participants consistently exceeded the required daily interactions. As hypothes…

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The association between antioxidant intake, dietary pattern and depressive symptoms in older Australian men: the Concord Health and Ageing in Men Project.

Purpose: The objectives of the study were to evaluate the associations between antioxidant intake, dietary patterns and depressive symptoms among older men. Method: 794 men participated in a detailed diet history interview at the Concord Health and Ageing in Men Project 3rd wave (considered baseline nutrition) and 781 men participated at the 4th wave (considered 3-year follow-up). Depressive symptoms were measured using the Geriatric Depression Scale (GDS ≥ 5). Dietary adequacy of antioxidant intake was assessed by comparing participants' median intake of vitamin A, E, C and zinc to the Nutrient Reference Values for Australia. Attainment of NRVs of antioxidant was categorised into a dichotomised variable 'poor' (meeting ≤ 2) or 'good' (meeting ≥ 3). Individual antioxidant nutrient was categorised into quartiles. The Australian and Mediterranean diet scores were assessed as predictor vari…

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Implications of identity resolution in emerging adulthood for intimacy, generativity, and integrity across the adult lifespan.

Erikson's psychosocial stage model posits that identity formation is a key developmental task for adolescents, and that successfully resolving the identity versus role confusion crisis at this time of life has important impacts on psychosocial development through adulthood. However, little empirical work has tested the consequences of early-life identity development for progression through the subsequent psychosocial stages in Erikson's model. The purpose of the present study was to test whether identity resolution measured during emerging adulthood predicted later developmental trajectories of intimacy, generativity, and integrity across adulthood. We used data from four cohorts of participants in the Rochester Adult Longitudinal Study (RALS; N = 1,224), with up to five assessments spanning the twenties through the sixties. Latent growth curve modeling was used to estimate developmental…

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Meningeal lymphatics affect microglia responses and anti-Aβ immunotherapy.

Alzheimer's disease (AD) is the most prevalent cause of dementia1. Although there is no effective treatment for AD, passive immunotherapy with monoclonal antibodies against amyloid beta (Aβ) is a promising therapeutic strategy2,3. Meningeal lymphatic drainage has an important role in the accumulation of Aβ in the brain4, but it is not known whether modulation of meningeal lymphatic function can influence the outcome of immunotherapy in AD. Here we show that ablation of meningeal lymphatic vessels in 5xFAD mice (a mouse model of amyloid deposition that expresses five mutations found in familial AD) worsened the outcome of mice treated with anti-Aβ passive immunotherapy by exacerbating the deposition of Aβ, microgliosis, neurovascular dysfunction, and behavioural deficits. By contrast, therapeutic delivery of vascular endothelial growth factor C improved clearance of Aβ by monoclonal antib…

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The Impact of Volunteering and Its Characteristics on Well-being After State Pension Age: Longitudinal Evidence From the English Longitudinal Study of Ageing.

Objectives: Volunteering after retirement age is beneficial to well-being. This study furthers previous research by presenting a longitudinal analysis of the well-being of volunteers, compared to non-volunteers, based on characteristics of the voluntary work in which they participate. Method: Participants were 3,740 people aged State Pension Age and over from the English Longitudinal Study of Ageing. Longitudinal regression models were used to determine whether frequent volunteers saw beneficial changes in well-being (depression, satisfaction with life, CASP-19, and social isolation) compared to non-volunteers. The initial model used a hierarchical approach so that we could also examine the impact of social and health factors. Models were then run to determine whether well-being in relation to volunteering was influenced by its continuity, the number of activities engaged in, whether the…

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