Why we should not diagnose people with more mental illnesses

Infectious bacteria have for the first time been caught performing "biological alchemy" to transform parts of the body into those more suited to their purposes, by a team in Edinburgh.

Weight loss following infection with intestinal worms is the body's way of fighting off the invaders, University of Manchester researchers have found.

Researchers have identified people in the US who anonymously donated their DNA for use in medical research - raising concerns about privacy.

The flu virus has an in built clock which tells it exactly when to strike to have the maximum impact, researchers have discovered.

The job of helping smokers give up their habit will pass from the NHS to councils in April, which raises questions as some local authority workers' pensions invest in tobacco stocks.