The most prevalent psychiatric disorder in the U.S. is a) Mood ...

[lak]

The most prevalent psychiatric disorder in the U.S. is
 
  a) Mood dysregulation disorder
  b) Cyclothymia
  c) Major depressive disorder
  d) Bipolar disorder

Question 2

Neuroscientists are interested in sleep because:
 
  a) it is a direct link to depression.
  b) it is a process influenced by bodily systems and life styles.
  c) more research is needed to study the effect of neurotransmitters.
  d) All the above

[peilian]

Answer to Question 1

c

Answer to Question 2

b