healing vs regression

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. 

regression

noun
  • An analytic method to measure the association of one or more independent variables with a dependent variable. 

  • The reappearance of a bug in a piece of software that had previously been fixed. 

  • An equation using specified and associated data for two or more variables such that one variable can be estimated from the remaining variable(s). 

  • The making an exercise less straining to perform by manipulating the details of its performance like loaded weight, range of motion, angle, speed. 

  • The diminishing of a cellular mass like a tumor, or of an organ size. 

  • A psychotherapeutic method whereby healing is facilitated by inducing the patient to act out behaviour typical of an earlier developmental stage. 

  • An action of travelling mentally back in time. 

  • An action of regressing, a return to a previous state. 

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