Largest ever genetic study of age of puberty in girls shows links with weight gain

Genes can indirectly influence the age at which girls have their first period by accelerating weight gain in childhood, a known risk factor for early puberty. Other genes can directly affect age of puberty, some with profound effects.

Genes can indirectly influence the age at which girls have their first period by accelerating weight gain in childhood, a known risk factor for early puberty. Other genes can directly affect age of puberty, some with profound effects.