life force vs vital force

life force and vital force both are nouns.

Word	Noun	Adjective	Verb	Adverb
life force	Yes	No	No	No
vital force	Yes	No	No	No

As nouns, life force and vital force are synonyms defined as:

life force and vital force: (biology) a hypothetical force (not physical or chemical) once thought by Henri Bergson to cause the evolution and development of organisms

Other synonyms of life force include elan vital, vitality.

life force (noun)	vital force (noun)
(biology) a hypothetical force (not physical or chemical) once thought by Henri Bergson to cause the evolution and development of organisms	(biology) a hypothetical force (not physical or chemical) once thought by Henri Bergson to cause the evolution and development of organisms