The right amount of restful sleep can reduce the risk of heart attack by 18 percent.
This applies both to healthy people and to people who already have cardiovascular disease. So far, the positive news. Conversely, sleep can make you sick. A long-term study with just under half a million test subjects found that too much and too little sleep significantly increases the risk of heart attack.
461,000 people without cardiovascular problems between the ages of 40 and 69 were observed over a seven-year period. An evaluation of their sleeping habits revealed:
- With less than 6 hours of sleep, the risk of heart attack increases by 20 percent
- With more than 9 hours of sleep, the risk of heart attack increases by 34 percent
The results also correspond to the findings of earlier studies.
As the researchers published in the Journal of the American College of Cardiology, a night’s rest between six and eight hours is optimal for the heart. The right amount of sleep is therefore as important for health as physical exercise and a balanced diet.