197k views
0 votes
"runner's high" occurs when prolonged, intense athletic activity causes the release of _____, the brain's natural painkiller.

User Arghya C
by
8.6k points

1 Answer

4 votes
The brain releases endorphins as a natural pain killer.
User Niccord
by
8.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.