Basic chemical releases that make you feel good to counter the muscular damage you probably inflicted. lol
Some people get addicted to that feeling, .. lunkheads, .. they don't know how to stop, in fact, they can't stop. Without it, ..they don't feel normal. No different than any other addiction, ... they're not always trying to get high, ..just trying to feel their personally defined normal.
As for a bad day, .. nope, .. just like you though, one day closer to that special moment when your heart takes its last beat.
Play any good video games lately ??
An always excellent dedication of one's time .. 
Have a good day.
Obviously I'm just being a random ass .. lol.... ..but these kinds of 'technological advances' always get me in rant mode.
