Scientists at Lund University, Sweden conducted a twelve-year-old study to analyze the sunbathing habits of 40, 000 women from 1990. They asked the participants whether they sunbathed in summer and in winter and the place they used to sunbathe, and followed the women's medical history. At the end of the study, as much as 312 women had thrombosis.
The results of the study showed that women, who sunbathed, were 30 percent less likely to develop blood clots, taking into account other factors like exercising, smoking and alcohol habits.
According to the findings, vitamin D, which is produced during sunbathing, lowers the risk of blood clots, but the mechanism is not well-understood. Further research is needed to find out how vitamin D contributes to reduced risk of blood clots.
Previous studies linked sun exposure to the increased risk of skin cancer. Swedish scientists pointed out that moderate sun exposure overweighs the risk of skin cancer. People should go out every day even in the afternoon for short time, but should avoid sunburns.
The study in the Archives of Internal Medicine found that people with vitamin D deficiency have the higher risk of death from heart disease. Vitamin D also is known to protect against such health conditions as osteoporosis, breast cancer, prostate and colon cancer, depression, sleep deprivation and immune system disorders.