Help me Understand...

... sang Trace Adkins, and, well, I think I'll need help with this one:

NHS Tayside has published a leaflet that tells us how to use... the toilet!!!!

Good Defecation Dynamics gives us instructions of what to do and what not to do when we're, well, following nature's call - like keeping a good posture and >>make sure your feet are well supported; you may need to use a small footstool<<.

Have I been doing it all wrong all these years...? And if so, why am I still alive?