Why is it not only good for your health, but also good for your mood?

Why is it not only good for your health, but also good for your mood?

Because sunlight will cause a series of physiological changes. For example, infrared rays can dilate capillaries and accelerate blood circulation. Promote the increase of adrenaline, thyroxine and gonadotropin. Adrenaline and thyroxine are hormones that stimulate the work of human cells. When the content is relatively reduced, the cells will be in a state of inhibition, so the function of the whole body is also in a state of inhibition. To promote the synthesis of vitamin D, 90% of vitamin D needed by human body is synthesized by sunlight. Studies have shown that people with higher levels of vitamin D are five years younger than those with lower levels, and their risk of senile diseases is also lower.

When the sun shines directly on the skin, the human body will produce nitric oxide and release it into the blood. Nitric oxide helps to promote metabolism, lower blood pressure, improve heart health and reduce the risk of heart disease and stroke. Sunbathing can also bring us a sense of relaxation, help to reduce physical and mental stress and improve happiness. Sunlight can supplement calcium to our body. After 4 1 year, people's bones begin to age, and osteoporosis will become more and more serious. In this case, we should get more sunshine and give our bodies proper calcium supplement. Old people are very happy, so every day when the weather is sunny and sunny, they will go out and stand in the sun. In fact, not only the elderly, but also young people should stand in the sun, so as to supplement calcium in the body.

Can prevent myopia. In our daily life, there are many reasons for myopia. Exposure to electronic screens or reading books for a long time may lead to myopia. But many people don't know the cause of myopia, which may be due to lack of sunshine. Regular exposure to the sun helps to relieve eye fatigue and effectively reduce the risk of myopia. Prevent colds. Regular exposure to the sun can keep warm and improve immunity. As we get older, our bodies will be able to resist various viruses and respiratory diseases and help prevent colds.