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.
Bacterial imbalance (dysbiosis) in the GI tract and undigested fat can also lead to a change in odor. The most common cause of smelly stool is bacterial fermentation of the food in your intestines that produces foul-smelling sulfide compounds. Antibiotics can also change the smell of stool and give it a medicinal odor.