Age spots may affect people of all skin types, but they're more common in people with light skin. Age spots: Are flat, oval areas of increased pigmentation; Are usually tan, brown or black; Occur on skin that has had the most sun exposure over the years, such as the backs of hands, tops of feet, face, shoulders and upper back
Fact Sheet: Melatonin. Melatonin is a hormone that helps you fall asleep. It has been taken for years as a supplement to assist with sleep; however, some doctors suggest that we are sabotaging our sleep by overusing it. Posted on 9/24/2012.
Melatonin might be more effective for other types of sleep issues, such as delayed sleep disorder or other sleep disorders affecting circadian rhythm. The most common melatonin side effects include: 1  Daytime sleepiness.  Headaches.