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.
Bowel movement is the movement of food out of the digestive tract which is the last step in the process of digestion. The passage of fecal material is through the anus which is the termination of the digestive tract. There are two major symptoms of the bowel movement; diarrhea and constipation.