In both data collections, participants completed the same questionnaires with information on health-related, reproductive and lifestyle factors. Remember that puberty happens on its own schedule, so there's no rushing it if you're a little slower to develop muscles. Shrier I, Platt RW. Some of the hormones that trigger this new hair growth come from your adrenal glands. During puberty, some boys might become worried about their bodies after seeing what some of their friends look like.
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Is There an Age Limit to Male Fertility?
Biological actions of androgens. So if your mom and dad are tall, you're more likely to be tall. Nevertheless, there are limitations worth considering. It's a doctor's job to help you take care of your body — even that part. Thinking about someone you like is a normal process of puberty.