Infectious diseases are caused by factors such as genetics, malnutrition, environment, and lifestyle.

Catalina ate a candy bar and then went on a fast-moving ride in an amusement park. she was sick to her stomach after the ride and now, catalina cannot eat candy bars, because they make her nauseous. in this learned association, the candy bar serves as a(n) to catalina.

Rotation of the head is made in atlanto-occipital joint or not?

How to stop staring at people in school if you have a staring problem?