What are the benefits of sunbathing in winter?

Most of the weather is cold in winter, so as long as the outdoor sunshine is good in winter, many people will go out to bask in the sun to drive away the cold, but in fact, sunbathing in winter is far more than just the benefit of driving away the cold and keeping warm. So what are the benefits of sunbathing in winter? What are the benefits of sunbathing in winter? What diseases can be prevented by sunbathing in winter?

1. Benefits of sunbathing in winter

1, preventing colds and flu

Epidemiological investigation shows that winter is the season of high incidence of respiratory infectious diseases such as colds and flu. Ultraviolet rays in sunlight are a kind of "natural disinfectant", which can kill viruses and bacteria of various respiratory infectious diseases. Regular exposure to the sun in winter can not only kill bacteria on the skin, but also help the human body to produce vitamin D in large quantities quickly, effectively regulate human immune function, increase the vitality of macrophages, improve immunity and prevent respiratory infectious diseases.

2. Beauty and skin care

Many people know that ultraviolet rays in the sun do great harm to the skin and wake up cancer cells in the body. So it is always not recommended to bask in the sun in spring and summer, but the sun in winter is different, because the sun in winter has less ultraviolet rays and is harmless to the human body. This kind of sunshine is particularly comfortable in the body and has a repairing effect on the skin.

Step 3 stay away from depression

In winter, the days are short and the nights are long, and the sunshine is reduced. If the elderly do not often go out to receive sunlight, the melatonin secreted by the pineal gland in the brain will increase, which can cause cell activity, increase the secretion of thyroxine and adrenaline, and easily lead to depression, depression, lethargy, general fatigue and other symptoms. Therefore, in sunny weather, when the elderly go outdoors to bask in the sun and participate in recreational activities, melatonin will decrease and thyroid hormone and adrenaline secretion will increase, thus stimulating their youthful vitality and sweeping away their depression.

Step 4 resist the cancer demon

Epidemiological studies have confirmed that if the light is insufficient and vitamin D synthesis is insufficient, the risk of breast cancer, colon cancer, lymphoma, ovarian cancer, prostate cancer, bladder cancer and other cancers will increase. Sunbathing can promote the synthesis of active vitamin D, enhance the immunoregulation activity of B and T lymphocytes, effectively inhibit cell proliferation and differentiation, and resist the invasion of cancer demons.

2. Precautions for sunbathing

1, have a glass of water before sunbathing.

When basking in the sun, the body temperature will rise, sweating will increase, and people will be thirsty and lack of water. If we don't drink some water in advance, people will soon feel thirsty and uncomfortable, which will naturally affect the comfort of sunbathing. So you can drink a glass of water before sunbathing, or you can sunbathe with a glass of water and take a sip when you feel thirsty.

2. Eye essence to prevent direct sunlight

Although the sunshine in winter is not as fierce as that in summer, it will still do great harm to your eyes to look directly at the sun. So when sunbathing, don't forget to wear sunglasses or a sun hat to block the light from your eyes.

Step 3 wear light or red clothes

Don't wear dark clothes if you want to stay in the sun for a long time and feel comfortable. Dark clothes absorb heat quickly, and they will soon feel uncomfortable and don't want to bask in it. Wearing red clothes can filter out some long-wave infrared radiation in sunlight, which is an important factor for sunlight to raise human body temperature. If you want to stay in the sun for a long time, you can't let your body temperature soar rapidly.

4, do a good job of skin protection

Before sunbathing in winter, you should pat some water on your face and apply some lotion and sunscreen. Although the sunshine in winter is not as hot as that in summer, the ultraviolet rays are still there. If you don't want to finish the sun, you should pay attention to sun protection.

If the baby is basking in the sun, you should pay more attention. Baby's skin is delicate, you can't use sunscreen, but you must add enough water. You can use clean cotton cloth to soak water every ten minutes, gently press it on your baby's face to replenish some water.

5. Grasp the time of sunbathing.

It is best not to spend more than two hours in the sun in winter, and avoid the midday sun (165438+ 0 am to 3 pm). At this stage, the sun's ultraviolet rays are strong and it is easy to burn the skin. If you spend a long time in the sun, your body temperature will rise, your metabolic function and blood supply to your heart will accelerate, and your brain will easily feel dizzy and bloated due to lack of oxygen.

6. Don't take a bath immediately after the sun.

Sunbathing in winter can promote the synthesis of vitamin D. Taking a bath immediately after sunbathing will wash away 7 dehydrocholesterol, which synthesizes active vitamin D in the skin, and reduce its role in promoting calcium absorption.

7. Don't get up and come into the house immediately after the sun exposure.

Because of the strong outdoor sunshine, people's eyes are difficult to adapt for a while, and they can't see clearly. In order to prevent your eyes from fainting, it takes a few minutes for your eyes to look at the darkness, get used to the light, and then leave the room.

8, pay attention to keep warm after the sun.

The temperature difference between outdoor and indoor is very large. You may have taken off your coat outside. When entering the house, you should add clothes according to your own situation to avoid cold invading your body and causing a cold.