Female rhesus monkeys of different ages underwent hormone measurements in an Epitalon study.
What the researchers measured
Evening melatonin production and daily cortisol patterns were assessed by enzyme immunoassay.
How to read this evidence
Researchers studied cells, isolated tissue, or animals. These experiments can help explain a mechanism, but do not establish benefits or safety in people. Human cells grown in a laboratory also belong in this category.
Results in context
This is another report on primate hormone rhythms. Publication counts do not establish independent replication or clinical sleep and longevity benefits.
What this does not establish
The short abstract provides limited methodological detail. Hormone rhythms in monkeys do not establish improved human sleep, longevity, or clinical benefit.
Publication & source
Why this paper is included
The compound is a named subject of the publication title.