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Salivary cortisol patterns linked to cognitive decline over 11 years
In a study published in the journal JAMA Network Open , an irregular pattern and consistently higher levels of the stress hormone cortisol in saliva were associated with cognitive decline later in life.
AI Summary
A study published in JAMA Network Open found that an irregular pattern and consistently elevated levels of cortisol measured in saliva were associated with greater cognitive decline later in life. The research also reported racial differences, noting that Black participants exhibited lower overall cortisol concentrations and less diurnal variation compared with White participants. These findings suggest that salivary cortisol dynamics may serve as a biomarker for long‑term cognitive health, with distinct patterns observed across racial groups.
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