Posts

Showing posts with the label sun benefit

THE MAGNIFICENT SUN

  The sun; a giant, glowing ball of gas some   850,000 miles in diameter . The temperature at its surface is   over 11,000 F ., hot enough to vaporize any material known to man. Deep within the sun, the temperature rises to over twenty million degrees, a heat we cannot begin to imagine or comprehend.             The sun dominates our solar system, containing more than  99%  of the system’s matter. The sun is a thousand times as massive as Jupiter, the largest planet, and  335 , 000   times  as massive as the earth. And if the sun were hollow,  1,300,000 earths  could be fitted inside!            In short, the sun is immense; it is the unquestioned center of the solar system.            And yet, when compared with other stars, the sun is nothing more than average. There are stars a dozen times as massive as the sun, and others but a tenth as large. There are stars that outshine our sun 50,000 times over, and others just a hundredth as bright.            In fact, the sun is a very middli

HOW BRIGHTER DAYS IMPROVE HEALTH CONDITIONS

                     Do you have trouble sleeping? The problem could be a lack of exposure to sun bright light during the day, especially if you are elderly. Researchers in Japan recently conducted a study of nursing-home residents who suffered from insomnia, and they found that the poor quality of the subjects sleep was related to their limited daily exposure to environmental light. At the same time, blood tests revealed that these elderly residents had low levels of the hormone melatonin.        Melatonin is secreted by the pineal gland in the brain. Under normal conditions, the daily rhythm of melatonin secretion causes concentrations in the blood to be “high during the nighttime and nearly undetectable during the daytime.        However, when the elderly are not expose to enough light during the day, blood melatonin levels fall. It seems that as far as the body is concerned, this blurs the distinction between day and night, which the researchers believe affects