disease-free vs healing

disease-free

adj
  • free of disease, not having, carrying, or suffering from any disease. 

healing

noun
  • The process where the cells in the body regenerate and repair themselves. 

  • An act of healing, as by a faith healer. 

  • The psychological process of dealing with a problem or problems. 

How often have the words disease-free and healing occurred in a corpus of books? (source: Google Ngram Viewer )