Cortisol is bad. Testosterone makes you aggressive. Melatonin helps you sleep. Experts bust common hormone myths False The main puberty hormones are oestrogen and progesterone for girls and testosterone for boys. “They are active in the womb during foetal development and in infancy in a phase called mini-puberty,” says Sasha Howard, clinical reader and honorary consultant in paediatric endocrinology at Queen Mary, University of London and Barts Health NHS trust. Continue reading...

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