A warning about the popular sleeping aid lunesta. And its generic form. Taken by early 1 million Americans. The fda is cutting the recommended dose because of concerns about drowsiness the next day. ABC news chief medical editor, Dr. Richard Besser, is here. The fda is saying anyone starting on the drug of lunesta or a generic form start with one milligram instead of two. So, half the dose. The reason is, the effects of the drug lasting to the next morning. Look at this new study. 7 1/2 hours after taking a 3 milligram dose, a lot of people were still having impaired memory, impaired coordination, which means no driving. 11 1/2 hours later, some people were still impaired. And they had no idea. That's what concerns me. They asked people whether they were functioning fine. Many people who were inpaired thought they had no problem. What are your recommendations? With any sleeping aid, you want to start very low. For me, half of a starting dose works just fine. But try other things first. I found since I've taken up meditation, I rarely have any trouble sleeping. It's totally changed my approach tonight time. And melatonin. There's natural things to do. There are. You don't want to reach for these pills right away. Unless you need them. Thanks, rich. Have a good weekend.