Psychosis usually develops after puberty, but there are plenty of cases of childhood psychosis.

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Sleep changes dramatically after puberty: Circadian rhythms shift so kids naturally stay up later.

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In contrast, girls appear to be overrepresented in disorders that begin after puberty such as depression and anxiety.

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He found that their output rises rapidly after puberty, reaches its peak during young-adulthood, and then declines with age and the demands of parenthood.

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Families in villages would betroth their children, at birth sometimes, and have a formal ceremony after both attained puberty, when the girl went to live with her husband's family.

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They were not sophisticated teenage girls, not by Western standards, but there had been no mystery about sex and procreation for them since soon after they had entered puberty.

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Ryuzo Yanagimachi, a biologist at the University of Hawaii, found that when he cloned a certain strain of mice prone to have diabetes, the clones would look normal at birth, but upon reaching puberty -- which, in mice, is after eight weeks -- they gained weight.

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When the motivational juice of puberty arrived, you'd be ready to go after the real rewards, in the world outside, with new intensity and exuberance, but you'd also have the skill and control to do it effectively and reasonably safely.

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