Boys are now hitting puberty a year earlier, finds study | Mail Online

Boys are on a faster track to puberty reaching the milestone an average year earlier than their fathers' generation, a study has found.

A study in Bulgaria found boys today start to develop at 12 years old, while those in the 1970s began changing when they were aged 13.

The findings suggest that trends towards earlier puberty aren't limited to girls, who have already been shown to be developing sexually at increasingly younger ages. 

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