Endorphins[1] are produced upon exercise. Also for those who do sports like racing, skiing, etc. There's the 'adrenaline rush' which leaves you an amazing feeli

Endorphins[1] are produced upon exercise. Also for those who do sports like racing, skiing, etc. There's the 'adrenaline rush' which leaves you an amazing feeling (sometimes literally goosebumps) when you successfully do something dangerous. I get this feeling when racing on the track and snowboarding. [1] https://en.wikipedia.org/wiki/Endorphins https://en.wikipedia.org/wiki/Endorphins