Vitamins 'undo exercise efforts'
Taking vitamins after exercise may undo some of the beneficial effects of the workout, experts believe.
In full: Brown speech on the NHS
Here is the full text of Prime Minister Gordon Brown's speech on the NHS and health screening plans.
New device for asthma sufferers
A mouth filter developed by a British scientist would allow asthmatics in cities to breathe in clean air.
Endurance running 'weakens bones'
Female endurance runners may build up their leg bones at the expense of their upper body, research suggests.