July 31, 2010 1:21 PM Subscribe
Puberty Blues - Hayley Smith started developing breasts when she was five. A year later, she had her first period. “It was awful,” her mother says. “There was so much ignorance. People treated her differently—Hayley didn’t really have a childhood. You just don’t expect to have to talk to your six-year-old daughter about having periods.” The evidence from Denmark suggests that Hayley’s experience could soon be commonplace. Most paediatric endocrinologists now agree that the age of puberty is falling fast in developed nations. But there is no consensus on why.
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