Is It Creates or Create?

Create and creates are both possible here: create would be an infinitive dependent on helps (just as reduce is); creates would be a main verb. I think you need to put an and after stress. Stress and pain is a possible list (of two items).

What is the sentence of creates?

"She quickly created a game to pass the time." "He successfully created a new product for his company." "The economy suddenly created new jobs." "He purposely created a scene in public."

What is the meaning creates?

: to make or produce (something) : to cause (something new) to exist. : to cause (a particular situation) to exist. : to produce (something new, such as a work of art) by using your talents and imagination.