what’s that chill/pleasant feeling you get while working out continuously

Question

Kinda hard to explain but I’ll try my best, while doing a certain drill if you keep on doing it instead of stopping the pain turns into a pleasant sorta feeling and it feels like you can go on forever

In: Biology

Answer 1

Your body releases endorphines which cause the feelings you describe. This is also known as “runner’s high”

Answer 2

If it’s the feeling you get after the gym where you feel invincible for about 20mins I get that that just in the way home after my usual workout.