Among the sleep time, the sleep time with the lowest mortality rate is about 7 hours. After conducting a survey of more than 90000 women aged 50-79 for 7 and a half years, researchers in the United States found that those who slept more than 9 hours a day had a 70% higher risk of stroke than those who slept 7 hours. Sleep time was an independent factor that increased the risk of stroke.
According to relevant experts, another study shows that sleeping too long may also induce diabetes. According to the survey, people who sleep 7-8 hours a day are the healthiest.
We all know that people who sleep too little will get sick, but many people don’t know that sleeping too much is also bad. According to a recent news, American researchers have found that women over 50 years old who sleep nine hours a day have an increased risk of stroke. It is understood that if you sleep too much, you can not only eliminate fatigue, but also affect your health and intelligence. Among the sleep time, the sleep time with the lowest mortality rate is about 7 hours.
risk 1: stroke and diabetes
After conducting a survey of more than 90000 women aged 50-79 for 7 and a half years, researchers in the United States found that those who slept more than 9 hours a day had a 70% higher risk of stroke than those who slept 7 hours. Sleep time was an independent factor that increased the risk of stroke.
Experts from Nanjing brain hospital introduced that the blood viscosity of the elderly is relatively high. If you sleep for too long, it will lead to an increase in blood viscosity, which will easily induce stroke and other cerebrovascular diseases.
According to relevant experts, another study shows that sleeping too long may also induce diabetes. According to the survey, people who sleep 7-8 hours a day are the healthiest. If the sleep time is less than 6 hours, the risk of diabetes will increase about 2 times; If you sleep more than 8 hours, the risk of diabetes will increase more than 3 times.
A survey shows that sleeping less than 6 hours a day will harm one’s health. At the same time, sleeping more than 9 hours can also be harmful to health. In the investigation of sleep time, the sleep time with the lowest mortality rate was about 7 hours. People who sleep less than 4 hours or more than 10 hours a day on average, regardless of whether they are men or women, have a high mortality rate.
risk 2: respiratory, cardiac and digestive diseases
Xiao Li is a teacher in a school. He likes to sleep in. He often sleeps for more than 10 hours in summer vacation. He found that his health was still poor and he often caught colds. The doctor helped him analyze that his frequent colds may be related to his love of sleeping in.
Experts say that the air in the bedroom is the dirtiest in the morning. Even with the windows open, some of the air is still not circulated. The unclean air contains a lot of bacteria, viruses, carbon dioxide and dust, which has an impact on the disease resistance of the respiratory tract.
For those who sleep behind closed doors for a long time, they usually exercise less. In addition, the dirty air in the bedroom makes it easy to often have symptoms such as colds and coughs.
When people are active, their heart beats faster, their cardiac contractility is strengthened, and their cardiac output is increased. When people rest, their hearts are at rest, and their heartbeat, contractility and blood output decrease. If you sleep too much, it will destroy the law of heart rest and exercise. The heart will rest again and again, and eventually the heart will contract weakly. A little activity will lead to inconsistent heartbeat, panic and fatigue. In addition, if you sleep too much, you will not be able to eat on time, and the stomach and intestines will move hungrily, disrupting the secretion of gastric juice and affecting the digestive function.
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