Is 100 year olds' secret to longevity sleep?

Is the trick to living out a healthy and productive twilight getting a good night’s sleep? Those who’ve already celebrated their 100th birthday sleep longer and better than the rest of the elderly.The study, published in the May 1st issue of SLEEP used survey data to look at the sleeping habits of the oldest populations in China.They discovered Chinese ages 100 or above slept an average of 7.5