Nearly one-quarter had trouble getting out of hospital bed, walking 10 feet and getting back in bed

But protective effect seems to last only about as long as exclusive nursing does

Study finds an association, but can't prove cause and effect

Fewer than six hours a night linked to higher rate of illness, researchers say

To reduce your risk, take a break, stand up and walk around while watching, researcher suggests

Four out of 10 high schoolers with medical conditions used one or both in past year, study found

But protective effect seems to last only about as long as exclusive nursing does

Study finds an association, but can't prove cause and effect

Fewer than six hours a night linked to higher rate of illness, researchers say

To reduce your risk, take a break, stand up and walk around while watching, researcher suggests