The science of sleep: hope for narcolepsy sufferers

Recent medical advances have given narcolepsy sufferers hope of a normal life, but only for a few in the UK

Common painkillers could be linked to male reproductive disorder

Scientists find link between mild painkiller use in pregnancy and raised risk of having a son with cryptorchidism

Vision chip: ‘People looked like ghosts’

Miikka Terho describes how he lost his sight and the learning process after surgeons fitted an electronic chip to restore it

Vision chip restores sight to blind man

The chip, which contains 1,500 light-sensitive elements, replaces damaged cells in a blind person's retina

Immune discovery opens up new line of attack against viruses

The immune system has been found to target viruses inside cells, suggesting new strategies against infections including the common cold and winter vomiting bug

NHS funding for homeopathy risks misleading patients, says chief scientist

Sir John Beddington says NHS funding may harm patients' health if they choose it over conventional medicine

I hope contraceptive gel will replace the imperfect pill

Mary Fitzgerald: A seeming lack of side effects could make a new gel revolutionary. Perhaps one day contraception will even be sexy

Dozens killed by incorrectly placed acupuncture needles

Professor of complementary medicine calls for adequate training for acupuncture practitioners after survey reveals punctured hearts and lungs among causes of death

Lucy Mangan: They can’t pull the wool over my eyes. Well, not any more

Maybe it's late-onset teenage rebellion, or some kind of early pre-menopausal hormonal adjustment, but a new questioning spirit is stirring within me

Children’s computer and television time linked to psychological problems

A study found that children who spent the most time in front of a computer or television were more likely to have psychological problems