endorphinated
/ɛnˈdɔːfɪneɪtɪd/
verb: endorphinate

1. The beautiful feeling, in heart & head, after a good run, cycle ride or swim. Always accompanied by aching muscles, and a drive to conquer the world.
Closely related to Latin root, carpe diem (ˌkɑːpeɪ ˈdiːɛm,ˈdʌɪɛm).