Drug-resistant gonorrhoea is on the rise. Scientists are trying to hold the line against the disease as they look for new ways to treat it.
People whose sickness is linked to certain buildings fear being labelled as mentally ill, while scientists seek evidence that their condition is real.
Joanna Moorhead on the decision she made not to have a mastectomy.
Uncovering the secret life of antidepressants could open up a host of new treatments for other conditions.