Non-human animals are used in psychological research because it is considered practical and ethical to do things to animals that researchers could not do to humans. For example, you can study the development of animals in a shorter time frame than humans. The use of animals is based on evolutionary theory.
I agree. While helping others with their problems, it really opens your eyes as to how good you really have it most of the time. As the saying goes, "you could always have it worse".
