It is often heard that sunlight contains ultraviolet light which may give the people bring the risk of skin cancer. Beauty-conscious women are worried about skin aging, even in winter, but also cast a thick layer of sunscreen. Recently, however, a large number of studies confirm that the appropriate activities under the sunlight will help prevent a variety of cancers, including colon and breast cancer, and even reduce the risk of Parkinson’s disease!
Everyone knows that vitamin D for bone health, human life is absolutely necessary. If a lack of vitamin D, it will cause malabsorption of calcium and bone mineralization of obstacles, not only led to child growth delay and rickets, osteomalacia also lead to adult disease, making osteoporosis worse. A study in Denmark shows that most of the muscle pain often suffer from the Danish women there is a serious lack of vitamin D.
However, most people do not realize the question is: lack of vitamin D, not only will affect the bones, but also may increase the risk of cancer. The study found that many of the body’s tissues and organs are present among the vitamin D receptor. The active form of vitamin D can effectively inhibit cell proliferation and induce cell maturation, for B and T lymphocytes in the immune regulating activity is also of great significance.
Epidemiological studies confirm that if it is not enough light, human breast cancer, colon cancer, ovarian cancer, prostate cancer and other diseases will increase the risk, the reasons are related to insufficient and vitamin D synthesis. It has long been found that residents of the equatorial low incidence of these diseases, while the residents of the northern cold regions higher incidence. Clearly, the activation of vitamin D synthesis for the regulation of cell proliferation and differentiation is necessary.
An analysis found that blood levels of vitamin D the most, their risk of breast cancer minimum; On the contrary, those women in the lowest level of vitamin D, with the highest risk of breast cancer. In a survey conducted among 1,500 people also found that, if effectively raise blood levels of vitamin D, you can reduce the risk of colon cancer two-thirds. The study found there are often exposed to the sun can delay the occurrence of prostate cancer up to 5 years.
When in contact with sunlight, the body will automatically synthesize vitamin D. If, however, is always in the absence of sufficient sunlight, vitamin D daily intake of 800-1000 international units in order to achieve effective prevention of cancer, which is higher than the recommended amounts of a double. However, the ingestion of large doses of vitamin D capsules or cod liver oil poisoning may occur, especially in the synthesis of VD2, toxic dose is relatively low. To get vitamin D through sun exposure is the most secure, because so far has not discovered any case because of the sun caused by vitamin D intoxication were reported.
Since the use of sunscreen, women are more vulnerable to lack of vitamin D, may also occur even in the absence of the summer. The hereditary skin color than skin deep, shallow women are more likely to occur a lack because of their skin for the weak response to light, the same light of the synthesis of vitamin D is relatively small. African-American because of the light in the same lack of vitamin D synthesis, often suffering from chronic lack of vitamin D, its breast and prostate cancer, and so the incidence of many types of cancer than white women, high and rapid development.
Can be seen, although the excessive ultraviolet light can cause skin cancer and skin aging, but the moderate exposure to the sun is still healthy. Therefore, it should be kept under the sun bathing. Half an hour a day of outdoor activities can enhance the resistance, improve mood, strong bones, but also reduce the cancer, why not?
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