Sleeping for 8 hours is not good for health
According to a recent news, researchers in the United States have found that women over the age of 50 have an increased risk of stroke during 9 hours of sleep a day.
The reporter also learned in an interview yesterday that if you sleep too much, you can’t even eliminate fatigue, which will affect your health and intelligence.
The sleep time with the lowest mortality rate during sleep time is approximately 7 hours.
Risk 1: Stroke and Diabetes Researchers in the United States have surveyed more than 90,000 women aged 50-79 for seven and a half years and found that people who sleep more than 9 hours a day are at greater risk of stroke than those who sleep 7 hours.A 70% increase in sleep time is an independent factor that increases the risk of stroke.
According to experts from the Nanjing Brain Hospital, the blood viscosity of the elderly is relatively high. If the sleep time is too long, the blood viscosity will increase, and the increase of blood viscosity will easily cause cerebrovascular diseases such as stroke.
According to experts, there is another study that shows that sleep time is too long and may induce diabetes. The survey found that people who sleep 7-8 hours a day have the healthiest health.
If you sleep less than 6 hours, the risk of diabetes increases about 2 times; if you sleep more than 8 hours, the risk of diabetes increases more than 3 times.
According to some surveys, sleeping for less than 6 hours a day can damage a person’s health.
At the same time, sleeping for more than 9 hours will also endanger health.
In the sleep time survey, the lowest sleep time for death was about 7 hours.
People who sleep less than 4 hours a day or more than 10 hours a day, whether male or female, have a very high death.
Risk 2: Respiratory tract, heart and digestive diseases Shi Sufang, chief physician of the Department of Respiratory Medicine, Jiangsu Provincial Hospital of Traditional Chinese Medicine, said that the air in the bedroom is the most polluted in the morning. Even if the window is partially covered, the air is not circulated. The unclean air contains a lot of bacteria, viruses and carbon dioxide.And dust, have an impact on respiratory resistance.
For those who have long sleep time, those who are closed-door sleepers usually have less exercise, and with the dirty air in the bedroom, they often have symptoms such as colds and coughs.
When people are active, their heart rate increases, their myocardial contractility increases, and their blood output increases.
When the person is resting, the heart is at rest, heartbeat, contraction, and blood output.
If you sleep too much, it will destroy the law of rest and exercise of the heart. The heart will rest and rest, eventually leading to a contraction of the heart. A little activity will cause different heartbeats and flusteredness.
In addition, if you sleep too much, you will not be able to eat on time, repeated dry peristalsis, disrupting the secretion of gastric juice, affecting digestive function.
Risk 3: The more you sleep, the more lazy, the intelligence decline expert explained, most people will think that to eliminate fatigue, you should sleep more.
In fact, it is completely wrong to use the idea of increasing sleep time to get healthy.
People who have been sleeping for too long will become lazy, weak, and even mentally declining.
After a restful night, the muscles and joints will become slack. Immediately after waking up, the muscle tension will increase, which will increase the blood supply to the muscles, repair the bones and muscles, and eliminate the metabolites accumulated in the muscles at night.Conducive to the recovery of muscle tissue.
People who often sleep late, because muscle tissue missed the opportunity of activity, after getting up, they will feel soft legs, lumbosacral discomfort, and weakness.
People who sleep late have a long-term state of excitement in their sleep center, and other nerve centers have been suppressed for too long, and the function of restoring activity becomes relatively slow, so they feel dim, slouchy, and even mentally degraded.
6-8 hours: Healthy sleep time So, how long does it take to sleep every day to benefit health?
Experts believe that for adults, 6-8 hours is the standard sleep time required, the elderly can be reduced by 1-2 hours on this standard, and adolescents can increase by 1-2 hours.
For infants, sleep time needs to be longer.
Of course, the most healthy sleep time needs to be determined according to your own situation.
The criteria for judging your healthy sleep time should be judged by not feeling tired and feeling full on the second day.