I wonder whether on average it's less risky on transatlantic flights to spend as much time out of your seat going to the bathroom, standing around, and stretchi

I wonder whether on average it's less risky on transatlantic flights to spend as much time out of your seat going to the bathroom, standing around, and stretching as possible vs. as much time buckled in as possible. My guess is lethal turbulence is so rare, and things like deep-vein thrombosis are so common compare to that rarity, that it's not even close.