Does sunbathing kill bacteria?

Many people like to sunbathe, believing that it can kill bacteria and supplement calcium. Sunbathing refers to the act of exposing the skin to the sun, which can delay aging. Sunbathing can also enhance the body's immune function and increase the activity of phagocytes. The most important thing is that people will feel happy after sunbathing. When the mood is good, the body will naturally feel better. So, do you know that sunbathing can kill bacteria? Let me introduce it to you below and hope it can help you. Let's take a look.

Can prevent osteoporosis

Adequate sunlight plays a very critical role in the production of vitamin D and calcium absorption. Once vitamin D is deficient, the body's absorption of calcium will be insufficient and the bones will become brittle and will fracture if one is not careful, such as by bending or jumping. Even if some osteoporosis has not yet reached the stage of fracture, it can still cause persistent pain, greatly affecting a person's quality of life.

Can prevent depression

Spring is a high-incidence season for depression. Experts suggest that people can go outdoors often to bask in the sun, which is very helpful in driving away depression.

Experts explain that sunlight exposure can cause a series of physiological changes in people. For example, the thermal effect of infrared rays can cause capillaries to dilate and blood circulation to accelerate. The effect of ultraviolet rays can cause melanin to oxidize, increase vitamin D and histamine in the skin, increase gastric acid secretion, and increase the levels of hemoglobin, calcium, phosphorus, magnesium, etc. in the blood.

In addition, with sufficient sunlight, the human body's secretion levels of adrenaline, thyroid hormone and sex hormone will increase, which will effectively improve negative psychological conditions such as low mood and depression.

Helps kill bacteria

The ultraviolet rays in sunlight are a natural disinfectant that can kill pathogens of many respiratory infectious diseases, such as influenza virus, measles virus, meningococcus, etc.

Studies have found that when exposed to direct sunlight, typhoid bacteria and tuberculosis bacteria will be killed after a few hours, Haemophilus pertussis can be killed in an hour, and Shigella dysenteriae can be eliminated in 30 minutes under sunlight. Experts suggest that citizens can get more sun exposure in winter and spring, especially patients with allergic rhinitis, rheumatoid arthritis and bronchial asthma.

What has been introduced above is the sterilization effect of sunbathing. I believe everyone has already understood it. I also want to tell you that sunbathing should be moderate. It can be divided into two time periods every day. The first period is in the morning. This time makes people feel warm and soft, and can promote blood circulation and remove blood stasis. The second period is in the afternoon, which can promote the absorption of calcium and phosphorus in the intestines, which is beneficial to strengthening the physical fitness and promoting normal bone calcification.