Do you ever wonder why you feel better after a long run, a roll in the hay or a good laugh? It's not just because you've relieved exercise guilt, had a wham-bam orgasm or heard an absolute knee-slapper. That elated feeling, which can last up to 12 hours for some people, has a scientific explanation. It comes from a release of endorphins.

"Endorphins are neurotransmitters produced in the brain that reduce pain," says Alan Hirsch, MD, neurological director of the Smell & Taste Treatment and Research Foundation in Chicago. "They have also been known to induce euphoria." Drugs such as morphine, heroine and cocaine are classic endorphin-releasing entities, according to Dr. Hirsch. But luckily for us, there are less-addictive ways of experiencing such sweet rhapsody.

Eat a chili pepper
Some say eating hot peppers is an addiction. The rush you get after holding one on your tongue is likely due to your body's protective response. "Chewing a hot pepper can release endorphins centrally and on the tongue," says Dr. Hirsch. Why? To reduce pain, of course.
Endorphin factor: 1 to 3, depending on how hot you can stand 'em.

Think positive thoughts
"When people take a placebo and they believe something's helpful, it often works," says Joel Fuhrman, MD, family physician and author of author of books including Eat for Health and Eat to Live. That's a direct result of the power of positive thinking, which can release endorphins that may actually ease pain even if a medication is physically ineffective.
Endorphin factor: 2. Hey, that's an instant feel-good moment just by the power of perspective.