Why endorphins (and exercise) make you happy

Story highlights

  • When your body comes under stress or experiences pain, neurochemicals called endorphins are produced in the brain
  • Endorphins were discovered 40 years ago
  • Endorphins are considered natural painkillers because they activate opioid receptors in the brain that help minimize discomfort

If you've ever taken out a bad day at the office on the nearest treadmill, you know that working up a good sweat can easily turn your day around. And by now you've probably heard that endorphins are the magic bullet behind that post-workout bliss. People love the feeling so much that "endorphin junkie" h