Sunbathing in spring helps to reduce 'winter fat'. The best time to sunbathe for calcium absorption is at 4 pm.

During the spring and summer, the sun shines brightly. While many citizens want to get as close to the sun as possible, some women have also begun to pay attention to sun protection and have applied sunscreen early. In fact, the sun is not as strong during spring and summer, and it is completely possible to sunbathe without an umbrella or sunscreen. Sunbathing for half an hour every day is also very beneficial to the body.

There are skills to sunbathe in spring and summer; only by doing it right can you lose weight and sterilize

Can prevent depression

Spring is a season with a high incidence of depression. Experts suggest that people can often go out to expose themselves to the sun, which is very beneficial for driving away depression.

Experts explain that sunlight exposure will cause a series of physiological changes in the body, such as the thermal effect of infrared radiation, which causes the capillaries to dilate and the blood circulation to accelerate; the effect of ultraviolet radiation can oxidize melanin, increase vitamin D and histamine in the skin, increase gastric acid secretion, and also increase the content of hemoglobin, calcium, phosphorus, magnesium, etc. in the blood.

In addition, under sufficient sunlight, the levels of adrenaline, thyroid hormone, and sex hormone secretion in the human body will increase, which will effectively improve low mood and depression and other adverse psychological conditions.

Can prevent osteoporosis

Sufficient sunlight plays a very critical role in the generation of vitamin D and the absorption of calcium. Once vitamin D is deficient, the body's absorption of calcium is insufficient, and the bones become very brittle, and fractures can occur easily without careful attention, such as bending over, jumping, etc. Some osteoporosis may not have reached the extent of fracture, but it will also produce persistent pain, greatly affecting the quality of life.

Helps to sterilize

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

Research shows that when sunlight is directly exposed, typhoid bacilli, tubercle bacilli, and haemophilus pertussis can be killed within a few hours, and dysentery bacilli can be eliminated within 30 minutes under sunlight. Experts suggest that citizens can get more sun exposure during winter and spring, especially for patients with allergic rhinitis, rheumatoid arthritis, and bronchial asthma.

Helps to lose 'winter fat'

American experts suggest that people who want to lose 'winter fat' should get more sun exposure.

According to information, the reduction in sunlight can stimulate people's desire for high-calorie foods, because the synthesis of serotonin, a hormone that helps lift mood and control appetite, decreases with the decrease of sunlight, making people prone to depression and increased appetite. In severe cases, it can even lead to a disease called 'seasonal affective disorder' (SAD). Statistics show that about 10 million people worldwide suffer from this disease every winter, and its cure includes half an hour of sunlight exposure every day.

At least 20 minutes a day

How much sun should each person get exposed to each day? The 'Key Points of Knowledge on the Prevention and Treatment of Osteoporosis' compiled by experts organized by the Ministry of Health suggests that at least 20 minutes of daily sun exposure is necessary to meet the body's needs. Because the ultraviolet radiation in sunlight promotes the high efficiency of vitamin D synthesis, for people without skin problems, about 20,000 international units of vitamin D needed by the body can be synthesized by exposing to the sun for about 30 minutes a day.

There are two periods in a day that are most suitable

There are two periods during the day that are most suitable for sunbathing: the first is from 6 to 10 a.m., during which the infrared radiation is at its peak and the ultraviolet radiation is relatively low, making people feel warm and soft, and can help promote blood circulation and remove blood stasis; the second is from 4 to 5 p.m., when the a beam of ultraviolet radiation is prevailing, which can promote the absorption of calcium and phosphorus in the intestines, benefiting the enhancement of physical fitness and the normal calcification of bones.