9 Benefit 9: Prevention of brain degeneration British research shows that the elderly who lack vitamin D are 50% more likely to suffer from brain degeneration than ordinary people. The risk of brain degeneration in elderly people with severe vitamin D deficiency is greatly increased 125%.

10 Benefits 10: Helps sleep Many elderly people retire at home and often suffer from insomnia. Or can't sleep, or wake up easily. Tracing back to the reason, it turns out that these old people have little activity during the day and seldom bask in the sun, which disturbs the normal rhythm and thus affects their sleep.

It is suggested that the elderly should bask in the sun more during the day according to the sunshine rhythm to improve the excitement of the body. Relax your physical and mental strength 1~2 hours before going to bed. Go to bed when you are sleepy at night. No matter how you sleep, get up on time the next morning.

1 1 How to bask in the sun is the most effective 1, and the best sunbathing time is between 10~ 1 1, when there is plenty of sunshine and soft light. Sunbathing works best.

2, the length of time in the sun can vary from person to person, young and middle-aged 1~2 hours, the elderly about 30 minutes.

Don't separate the window glass from the glass. Even the most useful ultraviolet rays can't enter. So, if you really don't want to go out, you can open the window to bask in the sun, or bask in the sun on the balcony. But it's best to go outdoors and sunbathe all over.

4. On the back of the key sun, there is a meridian that cannot be ignored-the Du Meridian. Du meridian is known as "the sea of Yang pulse", and Du meridian is full of Yang. When the back is warm and comfortable, the human body's yang will be sufficient.