20. You’re not sleeping on your side
Turns out you really can wake up on the wrong side of the bed. Research from Stony Brook University indicates sleeping on your side—either one—is way more effective in removing waste matter from your brain and reducing your risk of developing Alzheimer’s, Parkinson’s, and other neurological diseases than sleeping on your back or stomach. While you sleep, a system in your brain called the glymphatic pathway clears harmful chemicals that are produced during the day—much like how your lymphatic system clears any waste from your organs. So, long story short: Sleep on your side.
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