Is Your Sleep Cycle Out of Sync? It May Be Genetic

https://www.nytimes.com/2019/08/12/well/mind/is-your-sleep-cycle-out-of-sync-it-may-be-genetic.html

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Insomnia Can Kill You

Chronic insomnia is linked to an increased risk of developing hypertension, Type 2 diabetes, heart attack, depression, anxiety and premature death. It may also be a risk factor for dementia, especially Alzheimer’s disease.