A radical treatment for obsessive-compulsive disorder patients Could Gamma Knife, a non-invasive brain surgery using radiation, help OCD sufferers who can't be helped by more established treatments?
How a glass or two of champagne really does lift the heart Fizz made with black grapes shares benefits of red wine for heart and blood circulation, scientists find
Sleep disorder: When the lights go out Last month Brian Thomas was acquitted of strangling his wife – because he was asleep when he did it. But how does a sleep disorder turn an innocent man into a violent killer, and will the case open a loophole for the guilty?
Brazilian mint tea ‘as effective as pain-relief drugs’ Newcastle University researchers say ancient herbal tea is as effective as commercial medicine
Scientists give grubby children a clean bill of health Research in California shows children who are too clean could find their skin's ability to heal impaired
Pill-popping approach to female libido Christine Ottery: Flibanserin's makers promise help for 'hypoactive sexual desire disorder'. It suits drug companies to medicalise in this way
Heart disease was rife among affluent ancient Egyptians X-rays of mummies reveal signs of atherosclerosis, suggesting there may be more to the disease than bad diet and smoking
Viagra: The profitable pill Since its launch in 1998, Pfizer's treatment for erectile dysfunction has earned the company more than £1bn a year
‘Female Viagra’ boosts sexual desire in women with flagging libido Women who took the drug during a trial reported more satisfying sexual encounters and a higher libido