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The stress hormone that carries you through a hard month also quietens your immune system while it is high. When it drops, the immune side comes back up.

That is the plain version of a relationship usually summed up as stress making you ill, which is too blunt to be much use. Running high and running low both have costs, and the costs are different. Knowing which way your own pattern tends to run tells you more than the general warning does, and it takes the moralising out of it.

Qur’an and Sunnah

'He gave you hearing, sight, and minds' (Quran 32:9). Body and mind are named in a single breath, which is roughly what this physiology says as well.

ثُمَّ سَوَّىٰهُ وَنَفَخَ فِيهِ مِن رُّوحِهِۦۖ وَجَعَلَ لَكُمُ ٱلسَّمۡعَ وَٱلۡأَبۡصَٰرَ وَٱلۡأَفۡـِٔدَةَۚ قَلِيلࣰ ا مَّا تَشۡكُرُونَ

Then He moulded him; He breathed from His Spirit into him; He gave you hearing, sight, and minds. How seldom you are grateful

Qur’an 32:9read it in the library

Translation: M.A.S. Abdel Haleem, The Qur'an, Oxford University Press, 2004.

What the research says

A meta analysis of acute laboratory stressors found that how a person appraises a situation, and which specific emotion they feel, predicts both their cortisol and their immune response. The two systems really do move together, and interpretation is part of the picture rather than a bystander. These were short laboratory inductions, so applying it to years of chronic stress is an extension rather than a finding.

Denson TF, Spanovic M, Miller N. (2009). Cognitive appraisals and emotions predict cortisol and immune responses: a meta-analysis of acute laboratory social stressors and emotion inductions.. Psychological bulletin doi

Strength of evidence: one line of research. A single study, or a theoretical account.

Why it works

The hormone that mobilises you also holds the immune system down, so what your body is doing depends on which way it is currently leaning.

This one is still a draft. It is waiting on a scholar and a clinician to read it before it is published.

Near this one

More on your body

The stress hormone that carries you through a hard month also quietens your immune system while it is high. When it drops, the immune side comes back up · Inshirah