The primary elements or the building blocks of theory are

Personal belief, construct
Glanz et al., 2008b)

It's most likely choice a, it makes the most sense in my opinion.

You can drink laxative, or  do this exercise when you are sitting in the bathroom on the toilet. to relieve  constipation  fast or in about 1 minute, pinch your nose after your usual exhalation. start holding your breath. but do not mouth breath during this just hold your breath.