Your metabolism is the rate at which you burn off energy from the food you eat. Everybody's metabolism is slightly different, so everybody has slightly different needs when it comes to calories. As a general rule, the smaller and more physically active you are, the faster your metabolism.
Giardiasis is an intestinal infection of man and animals caused by a protozoan parasite Giardia intestinalis (also known as Giardia lamblia). Giardia is a simple one-celled parasitic species; it is not a worm, bacteria or virus. The parasite occurs worldwide and is a common cause of Traveler's Diarrhea in people.
The most common cause of pericarditis is idiopathic, meaning the reason cannot be determined. However, listed below are some known causes of pericarditis. Infections may cause inflammation of the pericardium and viruses such as the Coxsackie B, adenovirus and influenza A and B are most common.