LONDON (June 3 2009) - Furious suntan attention to sunglasses. If the first protecting your eyes you felt at peace with conscience and safe for your health against the harm caused by the sun on your skin, now a British physician is ready to bring down even this certainty. Our brains indeed getting a less powerful light through the filter of dark glasses to send signals to our bodies produce less melanin, as in the presence of little sun. From here the trouble to health. In the book "Survival of the sickest," for release tomorrow in the libraries of the United Kingdom, Dr. Sharon Moalem , after thorough research, speaks of an actual deception on the part of the body sunglasses: wearing glasses, in fact, the brain registers a smaller amount of sunlight, and the body is induced to produce less melanin (the substance that causes a tan to protect the skin from the sun): the result is that the skin is less protected and increases the risk of developing cancer.
This theory originates from a study published in the scientific journal "Journal of Investigative Dermatology ," according to which the light perceived by the eye would activate the production of so-called melanocyte stimulating hormone. "The perception of light is critical in triggering the natural process of self-defense body against the sun, "says Sharon Moalem the Sunday tabloid the Sunday Express," while acknowledging that perception is not reduced by the 'sole cause skin cancer.
The theory has gained wide acceptance by the scientific community. John Hawk, a melanoma expert at the British Skin Foundation says "The substance stimulates production of tanning is almost certainly related to the perceived light, while the German scientist Sven Krengel, who has done studies on the subject, concluded that" wearing sunglasses makes people not to seek shelter from the sun . In the U.S., where the incidence of skin cancer continues to rise, the cases last year were over one million.
( by messaggero.it )
A useful substitute for sunglasses with dark lenses may be the devices that pinholes , while not equipped with UV screen, can be used with benefit outside. They reduce in a natural manner - and without altering the color spectrum - the sunlight, which is usually not appreciated by those who have defective vision, although it is instead extremely therapeutic.
This visual aid in place of mount lenses sunscreen or a particular and exclusive distribution pyramid of small cylindrical holes (depth of a millimeter) can block a good portion of the oblique rays of light reaching the retina out of focus.
Gradually, his eyes reaccustom, without trying, the normal intensity of the sun, without winks and tears, and to put a an end to dependence on "sunglasses", which in some cases it is a real disease. The natural light of the sun, once your eyes get used to it, is the most potent therapeutic force that exists on Earth, as all the ancient holistic medical school always say. Not rinunciamoci!
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