A study by CU Boulder states sleeping for either less than 6 hours or more than 9 hours could up risk of heart attack

Not sleeping for an adequate number of hours poses a threat to long term health, especially to heart. The University of Colorado Boulder recently published research in the journal of the American college of cardiology about sleep duration and its impact oh heart. The researchers at the university conducted a seven-year-long study of about half a million people aged between 40 and 69.

An ideal duration to sleep is 6 to 9 hours per day. Senior author of the study who is an assistant professor at the University of Colorado Boulder and co-authors of the study from Massachusetts General Hospital and the University of Manchester studied genetic information, sleep habits as well as medical records of about half a million participants from UK Biobank. Participants selected for the study never had a heart attack. The study tracked participants for seven years. Participants whose sleep cycle was less than six hours a day were 20 percent more likely to have a heart attack during the duration of the research. Participants who slept for more than 9 hours a day were 34% more likely to have a heart attack. When researchers studied genetic susceptibility to heart diseases, participants who slept for 6 to 9 hours a day reduced their risk of having a heart attack by 18%. Results of the study provide concrete proof that the duration of the sleep is linked to heart diseases.

Over the years, research has pointed towards a link between sleep duration and heart health. But until recently researches couldn’t prove a direct connection. In the study piloted by the University of Colorado Boulder, researchers included 30 other factors such as physical activity, body composition, etc. the research concluded that duration of sleep directly affects heart health. One is at increased risk of heart attacks if sleep is either less than 6 hours or more than 9 hours. Irrespective of congenital heart disorders, one can reduce the risk with 6 to 9 hours of sleep as per requirement.

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