Cats really don't give a crap about much, unless their food bowl is empty. Then they care a whole lot. They may also care about birds outside the window, drinking water straight from the faucet, and rolling in fresh laundry.
But they certainly do not care about much else. Your sweet yoga moves are of no concern to them.
Case in point, this awesome orange bro plops down directly in front of the camera while his owner is attempting to record some head-stand, yoga-type thing.