And what if we sleep more than enough alias redundant?
"Individuals who slept more than 10 hours per day generally have a health profile that is worse than those who slept 7 to 8 hours per day," said Susan Redline, MD, MPH, professor of sleep medicine at Harvard and senior physician in the division of sleep and circadian disruption disorder at Brigham and Women's Hospital in Boston.
Michael Irwin, MD, professor of psychiatry and at the David Geffen School of Medicine at UCLA, said that sleeping too much can also cause a variety of diseases.
Here are some health problems that you may face if you too often oversleeping.
You are at higher risk of heart disease
Sleep more than eight hours, as well as sleep deprivation, long periods of time can increase the chances of becoming shorter lifespan by 34 percent.
Women are more susceptible to this risk than men because women tend to sleep longer than men, according to research from the Norwegian University of Science and Technology.
Weight faster ride
Many studies show that people who do not get enough sleep tend to be overweight or obese. As it turned out, this risk is not only associated with lack of sleep. Excess sleep can also trigger a similar risk.
Although it is not cause and effect, Irwin said, but nothing to do. "We know that obese people tend to sleep longer," he said. "And if you sleep too long, you are more likely to be obese."
The theory says, if you sleep too long, you become less mobile and metabolism will be slower, so the body so it is easier to store fat.
Diabetes risk rises
Too much sleep can increase your blood sugar levels. High blood sugar levels can increase the risk of developing type 2 diabetes.
Experts suspect this risk is associated with the risk of weight gain as described above.
Obesity and overweight, as we understand it, can increase the risk of various diseases such as stroke, heart disease, high blood pressure and diabetes.
Reduced concentration power
Can not concentrate? Blame sleep time is too long. Chronic, long sleep can make the brain more than the actual age of two years, according to research published in the Journal of the American Geriatrics Society.
You are at risk of early death
It's scary, but true. Large-scale epidemiological studies show that people who sleep longer, are more likely to die prematurely.
No one knows exactly why, but inflammation may play an important role, says Irwin.
The mood became chaotic
Depression and sleep has a close relationship, such as chicken with eggs. Often, Irwin said, the people who suffer from certain types of depression, sleep longer. And more sleep can make depression worse.
It's important to note, that not all people who sleep too much or feeling down, it is definitely suffering from depression.
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