HealthCovid-19 pandemic linked to early onset of puberty in some girls Several studies suggest that the number of girls starting puberty early has more than doubled amid the coronavirus outbreak - and experts are unsure exactly why News
HumansSibling rivalry: How birth order affects your personality and health Flawed stereotypes abound about bossy firstborns, middle-child syndrome and only children, but the true influence of sibling sequence is much stranger Features