What are the advantages and disadvantages of sunbathing in spring? In a year, the most comfortable is definitely spring. The weather in spring is neither very cold nor very hot, so it is just right to go out and bask in the sun. Then let's take a look at the advantages and disadvantages of sunbathing in spring.

What are the advantages and disadvantages of sunbathing in spring?

1. Help people get vitamin D: The source of vitamin D3 contained in human skin is made by getting ultraviolet rays from sunlight and converting it into vitamin D.. It can help the human body absorb calcium and phosphorus, is an indispensable nutrient for the baby's growth and development, and has the function of preventing osteoporosis and rheumatoid arthritis for adults.

2, can prevent skin diseases: proper exposure to ultraviolet rays can effectively kill bacteria on the skin and increase the skin's resistance.

3, enhance human immune function: ultraviolet light has a strong bactericidal ability, general bacteria and some viruses will be killed in the sun for half an hour or a few hours.

4, make people feel happy: the sun also has a certain mediation effect on people's life rhythm and psychology.

5, enhance metabolism: sunbathing can promote human blood circulation, enhance human metabolism, regulate the central nervous system, so that the human body feels comfortable.

6, enhance sexual desire: sunbathing can improve male androgen levels, enhance sexual desire, and improve sperm quality.

7. Prevention of anemia: Ultraviolet rays can also stimulate bone marrow to produce red blood cells and improve hematopoietic function, thus preventing anemia.

Disadvantages of sunbathing:

1, just a little sunshine every day is enough to meet our body's demand for vitamin D. Too much sunlight can easily have adverse effects on the skin. Wrinkles, dark spots, skin aging, etc. It's all the long-term effects of ultraviolet rays on our skin, and these are "irreversible" injuries that accumulate over time.

2, exposure or exposure for too long is easy to get all kinds of skin diseases caused by sunlight, such as sunburn, polymorphic solar rash, etc., increasing the risk of skin cancer. Therefore, it is best to apply sunscreen or parasol with high SPF, and wear wide-brimmed hat, sunglasses and long sleeves outdoors for a long time.

What are the advantages and disadvantages of sunbathing in spring? Advantage 1: Longevity.

Danish researchers have been studying for 26 years and found that more sun exposure can prolong life. People who often bask in the sun go outdoors more than those who always stay at home or in the office, which is also an important reason for their good health.

Benefit 2: Prevent some cancers.

Studies have found that people living in high latitudes often have too little exposure to sunlight and ultraviolet B light, which leads to vitamin D deficiency in their bodies. Therefore, the risk of leukemia (hematologic cancer) may be twice that of people living in the equatorial region. The researchers analyzed the incidence of leukemia in 172 countries and compared the incidence of cancers such as breast cancer, colon cancer, pancreatic cancer, bladder cancer and multiple myeloma.

The results show that reducing ultraviolet B light irradiation will lead to low concentration of vitamin D in the body, which is easy to cause cancer and increase the risk of leukemia. Although excessive ultraviolet rays may cause skin cancer and skin aging, mild sunshine is still beneficial to health.

Benefit 3: Lowering blood pressure

A British study found that exposing skin to the sun can lower blood pressure, thus reducing the risk of stroke and heart disease. This is because sunlight can change the content of nitric oxide in blood and skin, thus lowering blood pressure and effectively preventing diabetes.

Benefit 4: Reduce the risk of arthritis.

The study found that in Hawaii and Arizona, which have the most sunshine in the United States, the probability of women suffering from rheumatoid arthritis is 2 1% lower than that in Alaska and Oregon, which have the least sunshine. This result is obvious among elderly women. The researchers analyzed that this may be because young women pay more attention to sun protection or have fewer opportunities to bask in the sun.

Benefit 5: Protect cardiovascular and cerebrovascular diseases.

A study published in the British Medical Journal found that people with low levels of vitamin D have a higher risk of heart disease and stroke. Many studies have also confirmed that the number of patients with myocardial infarction will increase significantly in winter when ultraviolet rays are scarce. Proper sunlight will help vitamin D become more active, thus reducing inflammation in the body and being more conducive to blood vessel health.

Benefit 6: calcium supplementation

After calcium enters the human body, it is absorbed into the blood from the intestine, and it also needs the help of vitamin D. Therefore, if you want bone health, the real way to supplement calcium should be to exercise more and get more sunshine.

Benefit 7: Prevent skin diseases.

Mild sunshine in early spring is good for the skin. Proper exposure of the skin to ultraviolet rays can effectively kill bacteria on the skin and increase the skin's resistance.

Benefit 8: Reduce depression.

Seasonal depression is the highest in late winter and early spring. Taking the initiative to go out in the sun and stretch your muscles can give people a relaxed and independent feeling and improve the happiness index.

When the sun shines, our brain secretes a hormone called serotonin, which is also called "happy hormone" and can make us feel happy. Besides, people often move in bright light, which can make them feel happy and relaxed.

Benefit 9: Prevent brain degeneration.

British research shows that elderly people 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%.

Benefits 10: Helps sleep.

Many old 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.

How to bask in the sun is the most effective

1, time

The best time to bask in the sun is between 10 and 1 1 in the morning. At this time, the sun is more abundant and the light is softer. Sunbathing works best.

2. Duration

The length of sunbathing can vary from person to person, ranging from 0/2 hours for young and middle-aged people to 30 minutes for the elderly.

3. Don't go through the glass.

Through the window glass, the most useful ultraviolet rays can't enter, so if you really don't want to go outside, 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.

Step 4 focus on drying your back

There is a meridian that can't be ignored on the back-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.

What are the advantages and disadvantages of sunbathing in spring? 3 1. Enhance human resistance.

Chinese medicine believes that sun exposure can warm the yang of human body, which can support the normal function of viscera in human body. If the yang is sufficient, the human body's disease resistance will also be improved.

Step 2 disinfect

For pathogens of various respiratory infectious diseases such as influenza virus and meningococcus, ultraviolet rays in sunlight are natural nemesis, and some bacteria can even be killed within a few hours.

3. Prevent rickets, rickets, osteoporosis and rheumatoid arthritis.

Sunbathing can help people absorb trace elements such as calcium and phosphorus, which can not only prevent rickets and rickets, but also effectively prevent diseases such as osteoporosis and rheumatoid arthritis. Children can get more sunshine and make their bones grow strong and strong.

Step 4 prevent myopia

Life Times once reported a study by Australian National University, which showed that lack of sunlight may be one of the reasons for myopia. This is because sunlight can stimulate the production of dopamine, which helps to prevent the axial length of the eye from becoming longer, thus preventing the focus distortion of the light entering the eye when focusing. Therefore, more sunshine and outdoor activities can help bookworms reduce the risk of myopia.

5, improve the level of vitamin D.

Vitamin D deficiency has little to do with sun exposure. There is a sterol substance under human skin, which can only be converted into vitamin D by sunlight, thus promoting the absorption and utilization of calcium and phosphorus by human body, which is beneficial to bone health. Once the level of vitamin D in the body rises, it can not only reduce the chances of contracting influenza virus and suffering from respiratory diseases, but also effectively protect blood vessels.