Insufficient sleep duration and sleep disruption have been linked to weight gain, diabetes and early mortality in the long term, researchers say.

Chronic fatigue syndrome is characterized by extreme tiredness and a feeling of being worn out all the time, even after waking up. Its cause isn’t understood.

Air pollution from high-traffic roads increases the risk of asthma in children who attend nearby schools, new research suggests.

The problem comes in with people who have 3-D vision but have a weak fusional mechanism. Your eyes are having to work harder. The brain is sending extra impulses to keep the eyes in alignment.

Scientists in the US have warned of an online health information gap, which starves some people who suffer from chronic diseases, such as diabetes, from vital support.

Special contact lenses for glaucoma patients that come loaded with vitamin E could essentially lengthen the amount of time a medication bathes an afflicted eye.

Jet lag-related sleep problems are caused by disruption of internal clocks in two neural centers, a finding that could lead to more effective treatments, say U.S. researchers.

When trying to figure out how long it will take to do something, don’t ask the people in powerful positions because they tend to lean toward optimism and are less likely to make an accurate prediction.

Blood vessel function rapidly recuperates after smokers kick the habit, leading to a reduced risk of heart disease and heart attack, new research shows.

Bacteria colonies living on people’s hands are highly personal to each individual. That means forensic experts could one day use these bacteria to prove who had touched an object.