Healthy sleep habits could lower the risk of heart failure by 42 percent
https://www.yahoo.com/lifestyle/healthy-sleep-habits-could-lower-risk-heart-failure-42-percent-study-finds-214043007.html?soc_src=community&soc_trk=ma
Deep Sleep Study – Northwestern University
https://www.sleepreviewmag.com/sleep-health/sleep-whole-body/brain/deep-sleep-takes-out-the-trash/