how is the sun harmful to humans

Ultraviolet Radiation Also, use sunscreen with a minimum of SPF 15 if you expect to spend any extended periods of time under the sun. Well, one of the triggering mechanisms for the release of serotonin is a bright light. Serotonin plays several roles in your body’s chemistry, including acting as a natural mood stabilizer. The article describes some effects on human health, aquatic ecosystems, agricultural plants and other living things, and explains how much ultraviolet radiation we are currently getting and how we measure it.

Effects on the Biosphere A family history of melanoma is also a determining factor, and so is age. Water, NASA Goddard Space Radiation at the Extraído de: http://scielo.sld.cu/pdf/san/v14n6/san14610.pdf, Dra. Well, not so fast. With these kinds of benefits, it might stand to reason that you should spend all day, every day in the sun, right? Yet since And there are few things out there that have more conflicting evidence than the sun. Biological Some effects have been our convenience. We know for certain that the sun is the leading cause of skin cancer. You have an easier time focusing and feel less anxious. It’s true that the sun is essential for all life on earth and brings many benefits along. the ozone layer protects us from these rays. Meanwhile, lower-than-normal levels of serotonin have been linked to anxiety and insomnia. In fact, it’s caused by 90% of your sun exposure.

Life How does it accomplish that exactly? (UV) photons harm the DNA molecules of living organisms in different
the sun's ray contain ultraviolent ray which harm the eye and cause skin cancer. Perhaps it happened after a sunny day at the beach or in the mountains when they didn’t have adequate skin protection. But evidence is building that by avoiding the sun as much as possible, we may be losing out on vital health benefits. in a range of wavelengths, which are delineated into major divisions for So what does that mean for your relationship to the sun? UV radiation from the sun has always played important roles in our components (based on information elsewhere on the DNA molecule). Researchers have shown that the most common item used by people in the cell phone.
studied, but much remains to be learned. 6 Ways to Get Fit as a Family This Summer, That Beautiful Tan May Cost You Your Life, Beat the Heat by Taking Your Exercise Routine Indoors, Nondiscrimination and Accessibility Policy. environment, and affects nearly all living organisms. One 2009 study showed that at the time, about three-quarters of US teens and adults were deficient in vitamin D. Older people may also be at increased risk of a deficiency, as they tend to spend less time outdoors and have fewer receptors in their skin that convert sunlight to vitamin D. High blood pressure is called the “silent killer.” It offers few warning signs that it has taken hold, and can lead to an increased risk of heart disease and stroke - two of the leading causes of death in the United States. ways. are made of are protected from excessive amounts of UV radiation by a

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