stimulate vs wake up

stimulate

verb
  • To encourage into action. 

  • To arouse an organism to functional activity. 

wake up

verb
  • To become more aware of a real-life situation; to concentrate on the matter in hand. 

  • To awaken somebody. 

  • To awake. 

How often have the words stimulate and wake up occurred in a corpus of books? (source: Google Ngram Viewer )