The hidden cost of sex selection: Many people fear that if parents can choose the sex of their children, any imbalance of the sexes that results will lead to social upheaval. But this could be the least of our worriesNews
Mind & Body: Fear of food - Some people think eating disorders start in the brain; others that society is at fault. Either way, thet are very hard to treat.News
Obscure origins of desire: As researchers chart the links between brain and behaviour, they have stirred up a fierce debate over whether the roots of homosexuality lie in the wombFeatures
Focus: Guess what's coming to dinner? - Creatures created by genetic engineering are used in laboratories, and their meat could soon appear on supermarket shelves. Do these animals raise new ethical issues?News