You can still be hyper-productive without killing yourself in the process. Also, some people actually like to do these things.
Keep in mind that there is a point where relaxation turns you into a worthless bum, and constantly analyzing things before you act will mean you struggle to learn which paths don't work in reality.
Keep in mind that there is a point where relaxation turns you into a worthless bum, and constantly analyzing things before you act will mean you struggle to learn which paths don't work in reality.