Irritable male syndrome
Flagging men can now boost their testosterone levels. Robin McKie asks whether it's worth the risk.
Why Warnock’s law no longer delivers
Catherine Bennett: A couple of reporters have been touring British fertility clinics pretending to be infertile and in search of a sperm donor who would help them create a beautiful and intelligent "perfect" baby.
Bursting the fat bubble
Low-fat diets are good for your health, right? Not necessarily, says Lucy Atkins.