How Do We Deal With Infectious Diseases?

Psychologist says human attitudes to cleanliness are related to the problem of infectious diseases. We might feel so disgusted at the sight or smell of human waste that we actually want to vomit. These bodily reactions are the immune system's way of saying, keep away. This will make you sick. So although getting a bit dirty won't kill you, unless you're a leaf cutter ant, human evolution has developed a psychological way of keeping us clean. Join us again soon for more pical chat and useful vocabulary.