health point vs hit point

health point

noun
  • Synonym of hit point 

hit point

noun
  • In ray tracing, the point in a scene at which a ray strikes an object. 

  • A unit of damage, used to specify the amount of damage a character or object can withstand before it is defeated or destroyed. 

How often have the words health point and hit point occurred in a corpus of books? (source: Google Ngram Viewer )