Research shows that people tend to be happy if they are making progress toward their personal

The leading cause of death for men and women is

cardiovascular disease. cancer. Alzheimer's disease. pneumonia.

It is possible to cause a monkey to develop a condition called psychic blindness by surgically removing that animal's __________

When this happens the animal will lose its fear of objects that might ordinarily cause terror and extreme avoidant behaviors. a. prefrontal cortex b. amygdala c. reticular activating system d. medulla oblongata