Clipping of news on Brazilian Culture, Law and Citizenship
03/07/2013
This article was translated by an automatic translation system, and was therefore not reviewed by people.
Many consider the sun a great villain in good health. But the demonization of the king star may have its days numbered. Some studies show many benefits of sunlight for our health, of course, if taken proper care.
You suffer from insomnia? Spends all day sleepy, but at night can not close their eyes? Your problems may have a much simpler solution that remedies and teas. A U.S. study showed that the sun may be the solution for those who have trouble sleeping. The survey was conducted with a small sample, only 49 people attended. The aim was to evaluate the quality of sleep of workers who spent the day in different environments - 27 of them work in windowless rooms and 22 others have windows in their offices.
Details about the participants' sleep were analyzed from a valuation technique called Pittsburgh Sleep Quality Index. The results showed quite a difference in the night of sleep in both groups. Offices with windows allowed 173% more impact than the sun indoors. Consequently, the night's sleep just taking 46 minutes more.
Besides helping to sleep better, the sun also increases available during the day. Who is exposed to natural light tends to be more physically active, according to the study published online in the journal Sleep. Likewise, people are happier, while people who work in places without windows become more conducive to physical illness and reduced quality of life.
The sunlight also more secure source of vitamin D, essential for the uptake of calcium in the bones. For this reason is indicated by pediatricians to assist in the growth of children and prevention of anemia. According to Dr. Varella Dráuzio 15 minutes of sun exposure three times a week can ensure optimal levels of vitamin D in the body.
For seniors a great ally against osteoporosis. "There are few foods that contain large amounts of vitamin D, even the salmon, the richest of them all, is the amount obtained in just fifteen minutes a day of sunbathing," says dermatologist Flavia Addor.
The benefits also extend to the psychic area. Studies prove that their presence stimulates the mood of the people and prevents states of depression and suicide, frequent in countries with severe winter in which the presence of natural light is restricted to a few hours per day. Besides all that warm temperatures cause the body the feeling of muscle relaxation and helps the circulatory system.
A 2008 study on the impact of sun exposure on health suggests that the benefits of sunlight can also overcome the risk of skin cancer for some people. The study was led by biophysicist Richard Setlow, the first to draw attention to the link between sun exposure and skin cancer. He warns that a deficiency in vitamin D, a substance that helps in preventing various types of cancer and heart disease, and boost the immune system, caused by low sun exposure can be much more harmful.
The researchers found that the incidence of other cancers, such as lung, breast and prostate, increased from north to south, closer to the poles and minor radiation of sunlight. When analyzing survival rates, found that people who are more exposed to the sun have better prognosis, suggesting that people with longer exposure to the sun are more likely to survive various cancers.
The problem is that, even though many people want is not always possible to change the workplace to be closer to the sun. Thus, the ideal is to make the most of their time outdoors. But sunbathing is not a "cure" for unrestricted use, exposure to ultraviolet rays should preferably be between eight and ten in the morning four and five o'clock in the afternoon, during which the sunlight passes rays softer than the sun of midday, mainly responsible for causing sunburn and skin cancer.
Source: UOL - Modern Consumer
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This article was translated by an automatic translation system, and was therefore not reviewed by people.