Boys are maturing physically earlier than ever before. The age of sexual maturity has been decreasing by about 2.5 months each decade, at least since the middle of the 18th century. Joshua Goldstein, director of the Max Planck Institute for Demographic Research in Rostock (MPIDR) in Germany, has used mortality data to prove this trend, which until now was difficult to decipher. What had already been established for girls now seems to also be true for boys: the time period during which young people are sexually mature, but socially not yet considered adults, is expanding.
More risky behaviour ups risk of death