What happens when you sleep more than eight hours a day?

Although the harm of too little sleep is well known, according to a new study, too much sleep may also be harmful.

Researchers at the University of California, San Diego, found that people who sleep for 9- 10 hours every working day seem to have more problems in falling asleep and sleeping quality, as well as other sleep disorders.

Sleep disorders include waking up in the middle of the night, waking up in the morning, unable to fall asleep again after waking up, and fatigue during daily activities.

In addition, compared with people who sleep eight hours a day, people who sleep only seven hours a night also say that it is more difficult for them to fall asleep and feel less energetic when they wake up in the morning.

According to the research results published in the journal Psychosomatic Medicine, people who want to have a good sleep may not have to set a sleep goal of more than eight hours.

Daniel Kripke, the author of the study, said that for people who sleep more than eight hours or eight and a half hours a night, it "may be a good idea" to consider reducing sleep time. But he also cautiously said that more research is needed to prove this point.

Previous studies have shown that long-term sleep deprivation is potentially harmful. For example, a report shows that if a person habitually sleeps less than seven hours a night, the risk of death in a certain period of time is higher than that of people who sleep more.

It can be seen that 6-8 hours of healthy sleep every day is the best!

Recently, foreign medical research found that many people who often feel tired are not sick or lack of sleep, but are caused by too much sleep! Why does excessive sleep affect mental and physical strength? Because the blood circulation slows down during sleep, the nutrition and oxygen supply of the brain are greatly reduced. Sleep for too long, brain cells can't get enough oxygen and nutrition, so the activity ability is weakened. Too much sleep will reduce the activity of muscles and tendons, and muscles will get less oxygen and nutrition from the blood, so they will become relaxed and naturally feel tired.

Many people who sleep too much and feel tired can speed up their sleep, deepen their sleep and eliminate fatigue and powerlessness if they reduce some sleep time and take appropriate physical exercise.

So sleeping more is not a good thing.

I hope my answer can help you and I wish you a healthy sleep.