On Tue, 6 Jun 2000, Matthew Raney went:
> Once again, I had a student ask a good question for which I don't have the
> answer: do men have any type of cyclic fluctuation in testosterone
> levels?
http://www.cogsci.soton.ac.uk/bbs/Archive/bbs.mazur.html
[...]
Testosterone in men is secreted into the
bloodstream in spurts, so measured levels can change considerably
within a few minutes. The hormone has a circadian rhythm in both
sexes, highest and most variable in the morning, lower and more stable
during the afternoon (Dabbs 1990).
[...]
