03/06/2021
Sleeping less than 6 hours nightly or more than 9 hours nightly could increase the risk of heart attack.
MIT and Harvard researchers studied nearly 500,000 adults and found out that short sleep duration (9 hours per night) had a 34 percent increase in risk. They concluded that one additional hour of sleep per night in short sleepers would decrease the risk of heart attack by 20 percent.
Reference:
J Am Coll Cardiol. 2019 Sep 10;74(10):1304-1314.
https://doi.org/10.1016/j.jacc.2019.07.022