The mortality rate reached 20%. In recent 20 years, the global incidence of skin cancer has risen sharply, which is one of the important factors leading to the increase of skin cancer incidence.
8 am to 10, and 4 pm to 7 pm is the best time to bask in the sun. At this time, the sunlight is mainly the beneficial ultraviolet A beam, which can make the human body produce vitamin D, thus enhancing the anti-tuberculosis and osteoporosis prevention ability of the human immune system and reducing the incidence of arteriosclerosis.
For everyone, more exposure to sunlight in winter and spring can enhance the body's ability to adapt to changes in the external environment and effectively prevent colds. However, let the baby bask in the sun, we should pay attention to: it is ineffective to bask in the sun through glass indoors, because when receiving ultraviolet radiation through one layer of glass, the effect will be reduced by 30%, and it will be reduced by more than 80% through two layers of glass; It is not advisable to sunbathe on an empty stomach after breakfast 1 hour, and sunbathing should be persistent to get good fitness results.