Researcher questions testosterone’s angry-young-man effect

There is insufficient evidence to back a suggested a link between testosterone levels during puberty and changes in mood and behaviour in adolescent males, according to a systematic review.

The purported link is riddled with assumptions without any supporting data, says Professor Kate Steinbeck, lead researcher of the review published in the Journal of Adolescent Health.

Although the review has been criticised for not looking closely enough at the existing literature, she says: “We had thousands of