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.
Another cause of body odors has to do with digestion. Impaired digestion causes the production of smelly chemicals in the gut. These can not only cause smelly bowel movements. As the chemicals are absorbed back into the body, the odors can come out in the sweat on the skin, and in the breath as well.