Get your zzz’s on





You know what a bad night’s sleep can do to your focus the next day. Over the years, regular sleep deprivation can raise your risk of dementia, suggests research. “During sleep, your brain literally cleans out some of the toxicity that has built up from stress or agitation,” Dr. Chapman says. “Without good sleep, we see increased anxiety and stress. Sleep is restorative, helping you be more mentally energetic and productive. Even a quick nap helps.” Just keep daytime snoozing to about an hour, as longer than an hour and a half may be detrimental to your noggin, according to some studies. Here’s another scary thing that happens to your brain when you don’t get enough sleep.