Chapter 15 discusses physiological disorders, and the one that caught my attention is obsessive-compulsive disorder (OCD). OCD is a condition marked by immersing in obsessions or/and compulsions repeatedly for at least an hour a day. Most of the people with OCD tend to think that something is wrong with them and feel that they are "crazy". Most of them also experience compulsion, which is marked by repetitive behaviors for a lengthy time; for example people that have this condition can be washing checking door locks, washing hands, or counting doors repeatedly for lengthy periods during the same day.
I do have this condition, however, I learned to control it without receiving treatment for it. However, sometimes I cannot resist checking things over and over again. But I do not consider this a bad thing, because that helps me never forget any task assigned, and since being a surgeon is my career goal I am sure that OCD will help me to never forget an instrument inside a patient.
What concerns me is that the family dog, has the same condition and cannot stop licking himself. I wish I could get on his little head and see if he realizes that he is "crazy."