We spend roughly a third of our lives sleeping, but catching enough Zs isn’t always easy. Mayo Clinic Sleep Medicine Specialist Dr. Timothy Morgenthaler says adults should be shooting for seven to nine hours of shut-eye each night. Less than that, and your risk of cardiovascular problems, obesity, and even cancer can dramatically increase. But millions of Americans have trouble falling or staying asleep, so many turn to over-the-counter sleep aids. One of the most popular is melatonin.
In this Mayo Clinic Minute, Dr. Morgenthaler explains what melatonin actually does for the body, and when it's appropriate to use to improve sleep. Ian Roth reports.
Journalists: Broadcast-quality video pkg (0:59) is in the downloads. Read the script.