Cogito, ergonomic sum

Cogito, ergonomic sum: I sit up, therefore I am…not going to a back doctor. (Before and after photos for this one can be found below, on the website.)

My Dad had a terrible slouch,
As he sat at his desk or the couch,
But we found a new chair,
And he sits upright there,
So he no longer whines and says, “Ouch.”

Dad in his old chairDad in his new chair