A team of scientists from Chicago argues that lack of sleep and an overabundance of sleep adversely affect the work of the heart. To understand how the length of sleep and heart health is related, scientists have studied 3019 people after forty-five years.

It turned out that those who slept at night for six hours had a history of stroke and heart attack more often than others in 2 times. Heart failure in these people was observed 1.6 times higher. Surprisingly, too long a dream also has a negative impact on health. Those who slept for eight hours a day or more suffered angina pectoris a couple of times more than those people who spent in bed a moderate time.

Coronary heart disease also caught unawares lovers of long sleep 1.1 times more often.

Analyzing the received data it is possible to say with confidence that people who sleep an average of six to eight hours a day may not worry about their state of heart health than those who do not sleep or pause.

Specialists, however, did not realize why a long sleep is harmful for the work of the heart. Therefore, this phenomenon scientists plan to explore further.

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