> do nothing after work. why do you have to do something after work? do something because you feel like doing it, not because you feel like you have to.

Escapism. You SHOULD feel like you have to do some stuff. Our bodies are always aiming to relax, because conserving calories is an extremely effective survival method. We are hardwired to do nothing, in order to escape the burden of instead doing something.

> Escapism. You SHOULD feel like you have to do some stuff.

This word keeps coming up, coupled with things unrelated.

The OP isn't saying "do nothing". He's saying "do what you want to do". If he wants to study mathematics, that's neither escapism nor "doing nothing".

> You SHOULD feel like you have to do some stuff.

Gregor: It would be nice to do something.

Sam: We are doing something. We're sitting here, waiting.

"Ronin", 1998

Your body is, maybe, but we're not all the same. Making my body sit still and do nothing requires sustained, focused attention; action is the comfort state, and idleness the burden.

Call that conserving energy. Contrary to commonly-held belief, calories are a very ambiguous concept.

Or maybe people like to stare at the clouds while herding sheep. This is just bro-science half-baked evolutionary psychology bullshit.

Personally I enjoy listening to the birds with a book in my hands.