TechnologySocial networks show drug use follows lack of sleep Analysing the friendship networks of 90,000 teens shows that lack of sleep seems to cause increased drug use – and that teenagers influence each other ¿ìè¶ÌÊÓÆµ
HealthAlcohol during pregnancy chemically alters fetal DNA If the discovery in mice proves true in humans, this could explain the permanent physical and behavioural damage caused by fetal alcohol syndrome ¿ìè¶ÌÊÓÆµ