AP US Government Practice Test. The AP U.S. Government & Politics course covers the United States political system, and is one of the most popular advanced placement classes. The exam covers the general concepts that are used to interpret the U.S. Political System as well as the analysis of specific examples.
Fruits to improve appetite. Certain fruits are known to stimulate hunger and these include grapes, apples and black berries. Most of these fruits contain constituents that help to improve digestion and thus, they help to improve appetite. Often, a poor appetite may be the result of an unhealthy lifestyle.
The hypothalamus, a part of the brain, is the main regulatory organ for the human appetite. The neurons that regulate appetite appear to be mainly serotonergic, although neuropeptide Y (NPY) and Agouti-related peptide (AGRP) also play a vital role.