Green light decreases symptoms of migraine by 20%, says study
In this study, the researchers exposed patients to different light colors. Participants reported that white, blue, yellow and red colors worsened their pain, while the green light range reduced symptoms by 20%. In order to understand the reasons for the green light to cause less pain, the team of researchers developed another experiment to measure the magnitude of the electrical signals generated by the retina and the cortex of such patients by means of response to each color. Thus, it was found that red and blue lights generated a greater intensity of signals in the retina and cortex and that the green light generated weaker signals.
Following these results, the researchers applied a technique developed by Rodrigo Noseda, also a professor of Harvard, using animal models to study the neurons of the thalamus, a brain area responsible for transmitting light information from the eye to the cortex, detecting that such neurons are more sensitive to blue light than to the green light.
Burstein is now working in the development of a lamp that emits "pure green light" and low intensity, as well as accessible sunglasses that filter the green color.
Spirometry, also known as breath test, is an exam that measures lung function. The test will quantify the air the person breathed and the speed. This is a measure of the volume and flow of air entering and leaving the lung. An apparatus is used in which the person blows into a mouthpiece, called a spirometer, and the flow and amount of air exiting the lungs are evaluated.
The results are from a study, published in the journal Ophthalmology. The research was the first to calculate the combined effect of certain dietary nutrients on a person's risk of developing age-related macular degeneration. The data were collected from a database of 4003 participants of the Age-Related Eye Disease Study (AREDS), conducted by the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University (HNRCA).
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