Is four hours of sleep enough for an adult?

4 hours is not enough, adults work a lot of stress, 4 hours is not enough to bring the brain and body back to normal, another 4 hours is about the same.

Sleeping 4 hours a day has different consequences for different groups of people, which may generally lead to dizziness, fatigue, and affect work and study efficiency.

1.If you are an adult, the general daily sleep time should be guaranteed to be about 8 hours, if you only sleep for 4 hours, it is a serious lack of sleep, which will lead to dizziness, fatigue, reduced concentration and other symptoms, and over time will increase the occurrence of chronic diseases such as obesity and hypertension, and some people may also induce depression, anxiety and other mental diseases.

2.If you are an adolescent, you should keep about 9 hours of sleep a day, and 4 hours of sleep a day will also be a serious lack of sleep, which can lead to poor concentration, affect learning efficiency, and affect growth and development.

3.If it is an elderly person, there will be a physiological reduction in sleep time, generally 5-7 hours a day, so sleeping for 4 hours has a relatively small impact on the body, and there are even no obvious discomfort symptoms.

No matter what kind of people it is, it is necessary to ensure adequate sleep, and it is recommended to develop a regular habit of work and rest, which can ensure full energy and help prevent the occurrence of various diseases.

From a health point of view, sleeping for four hours is not good for your health. The latest research has found that adults should sleep a little more than 7 hours, which is the most suitable for the human body and is beneficial for longevity. It is generally believed that more than 80% of adults sleep for about hours a day, teenagers need more, teenagers need about 8-9 hours, and children need more, children need 10 hours of sleep.

But this is only for most people, there are individual differences. Some people take short sleeps and only need 4-5 hours of sleep every night. These 4-5 hours of sleep will not cause any discomfort to these people, so there is no need to force 6-7 hours, or 7-8 hours of sleep, so that they will feel uncomfortable.

Some adults may need to sleep for a longer period of time, and may need to spend 9-10 hours with a friend. This belongs to the long sleeper, and the envy of Jianfan accounts for about 1%-3% of the population. So how long you sleep depends mainly on whether you can sleep well, and you can be clear during the day, and you don't feel tired or sleepy, so you don't have to worry too much about how long you have to sleep.