The sun is a large body which emits harmful short-wavelength ultraviolet radiation. This, in turn, is absorbed by the ozone layer in the stratosphere. Unfortunately, the protection afforded by the ozone layer is being reduced by the use of chlorofluorocarbons (CFCs) which break down the ozone molecules. Read the rest of this entry »

In a year, on an average 4 million Americans complain about constipation. Constipation is the irregular movement of bowels. When one experiences constipation, stools are hard and this leads to difficulty in passing them. Read the rest of this entry »