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.
It's hard to tell people that stool can smell even worse, but it can, Raufman said. If there is a change in your stool that persists or is unusual, you should see your doctor.. Stool is made up of undigested food, bacteria, mucus and dead cells.It usually smells bad because of the bacteria and parasites, but it also can have compounds that produce an especially unpleasant smell. If you have blood in your stool, that usually comes with a particular strange odor, he said.Also, stool with a lot of fat can smell particularly bad.. Reasons for a foul smell could include certain medications, having food that's been stuck in the colon for too long, or having an infection, he said.Constipation.Dry, hard stools that are hard to eliminate are a sign of constipation.t's hard to tell people that stool can smell even worse, but it can, Raufman said. If there is a change in your stool that persists or is unusual, you should see your doctor.. Stool is made up of undigested food, bacteria, mucus and dead cells.