The device supports sleep by lowering cortisol within minutes, slowing the heart and quieting racing thoughts.
Add Yahoo as a preferred source to see more of our stories on Google. Cole Kan/CNET If you're a light sleeper who's sensitive to sound, then you know how difficult it can be to catch some Zs.
Different people may experience one of five types of sleep, and these profiles each highlight how our shut-eye affects our health. To take a more holistic approach, Valeria Kebets at Concordia ...
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