What are the disadvantages of not getting sun exposure

With the quickening pace of modern life, more and more people prefer to stay indoors and not do any physical exercise, and many people are afraid to go out in the sun for fear of getting tanned. In fact, the sun is the source of all things. Not getting enough sun exposure is not good for the body. However, too much sun exposure can cause cancer. Therefore, we should have a set of scientific methods of sun exposure that can help us better maintain our health.

Lack of sun exposure will lead to vitamin D deficiency in the human body and increase the risk of cancer. Sun exposure can promote the synthesis of vitamin D. Students from the University of California, San Diego once studied and compared the incidence of colon cancer in New Mexico and New York and found that the incidence of colon cancer in the latter was three times that of the former. The reason is that the daylight hours in New York are much shorter than in New Mexico, and people's opportunities to bask in the sun are greatly reduced.

Sunbathing can help the human body obtain vitamin D, which can promote the body's absorption and utilization of calcium and reduce leg cramps caused by calcium deficiency. For infants and young children, it can effectively prevent osteomalacia and rickets. For middle-aged and elderly people, it can effectively prevent and treat osteoporosis and rheumatoid arthritis.

Appropriate exposure to ultraviolet rays can effectively kill bacteria on the surface of the skin, enhance the skin's resistance, and thus reduce the chance of skin infection. The ultraviolet rays in sunlight can stimulate bone marrow cells to produce red blood cells, improve hematopoietic function, and effectively prevent anemia. The disadvantage of sunbathing is that if you overexpose yourself to the sun, you may get dermatitis, pigmentation, burns, and even skin cancer.

Nowadays, people in many Western countries like to sunbathe, believing that tanning the skin is the healthiest state. In fact, this is also wrong. We cannot go out in the sun when the sunlight is particularly strong, as this will cause sunburn and induce skin pigmentation. If the pigmentation is severe, it will also cause skin cancer. Therefore, it is important to master healthy sunbathing methods.