endorphins

Cultural  

1. Substances produced by the brain that have painkilling and tranquillizing effects on the body. Endorphins are thought to be similar to morphine and are usually released by the brain during times of extreme body stress. The release of endorphins may explain why trauma victims sometimes cannot feel the pain associated with their injuries.

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Example Sentences

Researchers in the late 1970s found that after patients had their molars extracted, an IV saline drip provided pain relief through the body’s natural ability to produce endorphins.

From Slate • Jan. 30, 2026

Cardio is not just good for my heart, but is a great emotional release and gets my endorphins going.

From The Wall Street Journal • Jan. 5, 2026

Tamalpais glowed in the late afternoon light, and endorphins flooded our systems.

From Los Angeles Times • Oct. 7, 2025

"It releases endorphins and has helped me to recover," he added.

From BBC • Jun. 18, 2025

And so I run harder, trying to stop thinking, turn off my mind, get the endorphins flowing, the heart pounding, and work off what I couldn’t while sitting on the bench.

From "Boy21" by Matthew Quick