BBC Health

The number of deaths worldwide from malaria has been underestimated, according to data published in the medical journal the Lancet.

Abnormalities in the brain may make some people more likely to become drug addicts, according to scientists.

Research which suggests that patients are more likely to die in hospital if they are admitted at the weekend is backed up by a major study.

Three British men die and three more people remain in hospital after contracting Legionnaires' disease while on holiday in Spain, a tour company says.

A record number of potentially dangerous new legal highs were found in Europe last year, say doctors.