A Yahoo! News report examines the question as to whether or not milk can help a person fall asleep.

When dealing with a restless child at bedtime, a parent may serve up a glass of warm milk. But from a physiological perspective, does the warm milk actually cause one nod off?

Proponents of this myth may claim that milk contains tryptophan, which causes sleepiness. However tryptophan can’t cross the blood-brain barrier unless insulin is present, experts noted. So you’d also have to ingest carbohydrates with the milk to raise your blood sugar to absorb the tryptophan. And even if you do, the amount of tryptophan in milk is so small it has virtually no effect.

Read the full story at www.yahoo.com