Amylase is an enzyme, which are protein molecules that help in the breakdown of complex substances. Enzymes have optimum conditions in which they operate, which also include specific pH ranges. The pH in the stomach is too low for amylase to work in, so amylase is denatured and does not perform its function in the stomach.
The other organ producing amylase is the pancreas.
It is still unknown what exactly causes multiple sclerosis but there are theories that claim it is due to large physical strain put on the body. That's why there are numerous women who get it after child birth.
Bulimia can leave a person's body in a state of hypoglycemia which evidently leads to fatigue, in addition due to the repetitive emesis episodes, the gums are usually affected causing a dental disorder.