Male sexual heat is a common feature of wild animals like deer, elephants, and many bird species. It is related to annual increases in testosterone production that increases aggression and sex drive.

Please provide your email address to receive an email when new articles are posted on . A heterosexual man’s morning testosterone levels are not influenced by a partner’s ovulation cycle, according to ...

A cheeky, science-backed look at how testosterone, oestrogen, dopamine and stress hormones shape libido. Clear tips, myths busted, and practical fixes.

Testosterone is a naturally occurring steroid hormone. Despite its status as a steroid, prescription testosterone replacement ...