A cataract is a clouding of the lens in the eye that affects vision. Most cataracts are related to aging. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery. cataract is a clouding of the lens in the eye that affects vision. Most cataracts are related to aging. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery.
Commonly known as farting, passing wind, or having gas, flatulence is a medical term for releasing gas from the digestive system through the anus. It occurs when gas collects inside the digestive system, and is a normal process.
Flatulence, also known as farting or passing wind, is the passing of gas from the digestive system out of the back passage. Flatus is the medical word for gas generated in the intestinal tract.Medical literature describes flatulence as flatus expelled through the anus . Flatulence is commonly a source of laughter or embarrassment. Excessive flatulence can cause enormous discomfort and distress, mainly when there are other people around. Gas may be produced as a by-product of digestion of certain foods, or when foods are not digested completely. 2  Anything that causes food not to be digested completely by the stomach and/or small intestine can cause flatulence when it reaches the large intestine.