Multiple sclerosis 'linked to food bug'

A food poisoning bacterium may be implicated in MS, say US researchers. Lab tests in mice by the team from Weill Cornell Medical College revealed a toxin made by a rare strain of Clostridium perfringens caused MS-like damage in the brain.

 

Alcohol linked to skin cancer ris

Scientists believe drinking too much alcohol could set off a chain of reactions in the body that makes the skin more vulnerable to cancer. Ethanol is converted to acetaldehyde soon after ingestion and this compound may render the skin more sensitive to harmful UV light, they say.

 

Vitamin pills 'lower exercise gains'

Taking some types of vitamin supplement may make it harder to train for big endurance events like marathons, researchers in Norway suggest. They said vitamins C and E should be used with caution as they may "blunt" the way muscles respond to exercise.

 

DDT: Pesticide linked to Alzheimer's

Exposure to a once widely used pesticide, DDT, may increase the chances of developing Alzheimer's disease, suggest US researchers.