life support vs supporting

life support

noun
  • The equipment and special procedures used for life support. 

  • Means of sustaining existence or continuation of something, usually in an artificial manner when it should have changed or terminated in its natural environment. 

  • Maintenance of vital functions of a critically ill or comatose person or a person undergoing surgery. 

  • An artificial system designed to provide oxygen in an environment that lacks oxygen. 

supporting

noun
  • That which supports something else; a support. 

adj
  • That supports. 

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