body hair vs lanugo

body hair

noun
  • Hair of the body; in particular, androgenic hair, to the exclusion of facial hair and the hair atop one's head. 

  • An individual strand of such hair. 

lanugo

noun
  • Soft down or fine hair, specifically that covering the human foetus or a tumorous area. 

How often have the words body hair and lanugo occurred in a corpus of books? (source: Google Ngram Viewer )