The difference between primary and secondary insomnia is a. ...

[savannahhooper]

The difference between primary and secondary insomnia is
 
  a. the length of time the insomnia has lasted.
  b. the cause of the difficulty of falling asleep.
  c. the age of onset.
  d. the likelihood of being affected at a given time of year (seasonal).
  e. the time of the night that the sleeplessness occurs.

Question 2

________ during REM sleep may be controlled by projections from the dorsal pons to the ________.
 
  a. Muscle paralysis; thalamic relay nuclei
  b. Eye movements; cingulate cortex
  c. Cortical arousal; lateral geniculate
  d. Muscle paralysis; basal forebrain
  e. Eye movements; tectum

[Tabitha_2016]

Answer to Question 1

Answer: b. the cause of the difficulty of falling asleep.

Answer to Question 2

Answer: e. Eye movements; tectum

[savannahhooper]

Thanks for the timely response, appreciate it

[xiaomengxian]

TYSM