7 Harmful Effects of Sleep Loss, according to Harvard Medical School Research

"How Sleep Loss Threatens Your Health" by the Harvard Medical School
  • Viral Infections - getting less than 7 hours a night tripled risk of catching a cold
  • Weight Gain - in a review of 36 studies, confirms the link between lack of sleep and weight gain, particularly among children
  • Diabetes - insomnia of a year or longer or less than 5 hours a night tripled risk of type 2 Diabetes
  • High Blood Pressure - Journal of Sleep, getting less than 6 hours of night increased risk of high blood pressure by 3.5 times
  • Heart Disease - getting less than 4 hours doubles risk of dying of heart disease
  • Mental Illness - studies of young people, a history of insomnia quadruples risk of depression. Sleep loss preceded depression in 69% of cases in another study
  • Early Mortality - Short sleeping patterns increased mortality by 1.3 times, and by 46% for those with severe apnea

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