Decisions on whether a footballer can return to the pitch after a head injury should be taken by an independent doctor, says an editorial in The Lancet.

One in three cases of Alzheimer's disease worldwide is preventable, according to research from the University of Cambridge.

German doctors are highlighting the dangers of headbanging after a 50-year-old man developed bleeding in the brain following a Motorhead concert.

Scientists argue over the merits of a review which concludes that organic foods have higher levels of antioxidants and lower levels of pesticide residues.

A cholera outbreak has spread to nine out of 10 states in South Sudan.

Nearly 500 young children a week are being admitted to hospital to have rotten teeth removed, according to NHS figures.

Child neglect is to blame for "absolutely appalling" levels of children needing their teeth pulled in hospital, a dental charity says.

Non-EU patients are to be charged 150% of the cost of NHS treatment in a fresh crackdown on so-called "health tourism".