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 movements smell because while the food is mixed together it also has acids and digestive juices added. Types of foods plus the breakdown of the foods causes it to have a â¦ n odor. Urine smells because of the same digestive process, plus because the body filtrates toxins from the blood into the urine.