We've seen evidence that vitamin D deficiency is associated with sleep problems, particularly with daytime sleepiness. A new study examined the link between daytime sleepiness and vitamin D, and also considered one of the major risk factors of vitamin D deficiency: skin pigmentation.

A recent study suggests that many cases of ADHD in children may have been misdiagnosed, and that behavior such as moodiness and hyperactivity might in fact be due to obstructive sleep apnea or other sleep disorder.

If your child is having trouble focusing while doing schoolwork, you might need to take a look at his or her sleep habits, a new study suggests. Ne...

By encouraging clock watching and drug use during the middle of the night, Intermezzo may provoke people to wake in the night in order to take a pill.