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.
Here they are. 1  Frequency â common perception about normal bowel is one movement daily. But this does not apply to everyone. 2  Characteristics â moving your bowels should never be a struggle. It should be soft and pass through easily although some may have softer or harder bowels than others.