The number-one thing you can do for better sleep

If you struggle to get the rest you so desperately need, there's one simple thing you can do. According to neurologist and sleep medicine specialist W. Chris Winter, MD, it's as simple as setting your alarm for the same time every day—no matter how late you hit the hay the night before. In this excerpt from his new book The Sleep Solution ($26; amazon.com), Dr. Winter explains how sticking to that wake-up time will eventually train your brain to doze off at a consistent time too.