On the English Language and Usage stack exchange, two people asked what was meant by "testosterone-charged", as in the following quote, from the story "2 States: The Story of My Marriage" by Chetan Bhagat:
"I’d have much preferred her place, as I didn’t want her to be the only woman in the dorm with twenty testosterone-charged men"
A number of English language dictionaries describe testosterone as a figurative way to refer to manly behaviour. For example, the English edition of Wiktionary has
2 (figuratively) Manly behavior, often of an aggressive or foolishly reckless nature. Mother encouraged James to rely more on intelligence and less on testosterone to deal with the neighbor's son.
While vocabulary.com has in the second paragraph
The word testosterone was coined in the 1930s. It is based on the Latin word testis, which means testicle, and the word sterol, meaning steroid. Because it is the hormone that develops male characteristics, the word testosterone sometimes refers to the quality of being male. A room crowded with men watching football is commonly described as being "full of testosterone."
and Merriam Webster has
2: qualities (as brawn and aggressiveness) usually associated with males : manliness
These sources may or may not be notable in themselves, but they do attest to a widespread perception by the general public about what testosterone is and what it does.
Question is, is this perception valid? I'd like to know, so that if I had to describe the metaphorical sense of "testosterone", I'd be able to tell them right off the bat whether it was true or not, rather than polluting the world with more misinformation.
I'm wondering because many ideas that become popular in the general public are either incorrect, or have been over-simplified somewhat, whereas ideas that are complicated and nuanced aren't as popular in the general public.
Wikipedia's article on testosterone is very long, but most of it is about mundane details such as its effects on anatomy (in both a euphemistic and non-euphemistic sense). The section Romantic relationships and fatherhood onwards until the end of Aggression and criminality addresses the effects of testosterone on behaviour, but some of it is less than convincing. Sometimes it talks about correlation, and Wikipedia doesn't seem to mention a mechanism by which testosterone causes "male" behaviour.
Does testosterone play a role in stereotypical "male" behaviour, such as a high desire for sex, and a propensity for competitive, aggressive or high risk behaviour?