The science of gerontology has evolved as longevity has improved. Researchers in this field are diverse and are trained in areas such as physiology, social science, psychology, public health, and policy. A more complete definition of gerontology includes all of the following:
Smelly bowel movements are caused by the release of gas. when bacteria, bile or acid mixes with food. Depending on the. food you eat, and where in your digestive tract the mixing. occurs, the combinations can produce various types of gas, all. with different smells.
Diarrhea means you have to move your bowels often, and your bowel movements are loose, mushy, and watery. Sometimes this happens if you change the kinds of foods you eat or if you're taking certain medicines. Diarrhea also can happen when you don't wash your hands after you go to the bathroom and before you eat.