The brain stem: which controls basic functions critical to life
The cerebral cortex: the cerebral cortex, processes all the functions of the brain.
The limbic system: This part of the brain is acts like the brains reward system.

  1. 2% – 4% of the population abuse prescription drugs.
  2. Whites are more likely than other racial or ethnic groups.
  3. The older people are more vulnerable because they are less healthy.