Deep Sleep A Natural 'Fountain Of Youth' In Old Age, Study Says | A new study finds that seniors who don't get enough deep sleep are more likely to suffer from memory loss and life-threatening ailments like heart disease https://t.co/NKv2kgnKSG http://pic.twitter.com/GKvi9YOdGI
— Jerry Rosser (@psychologyofjoy) December 19, 2017