The Runner's Secret

Rea,

I’ve noticed how you’re always smiling after swim practice. Even when you’re tired from all those laps, something makes you feel energized and happy. What if I told you your brain has special messenger molecules that create that feeling?

Remember learning about oxytocin - that feel-good messenger your brain releases when you’re with people you love? Well, it turns out that’s just one way your brain sends happy messages to your body. Back in the 1970s, scientists discovered another messenger when they noticed something curious about long-distance runners.

These runners felt incredibly happy after their runs - even when they were exhausted. Some called it “runner’s high.” The feeling was so powerful that scientists wondered if the runners’ bodies were making their own natural version of pain medication. And that’s exactly what they found.

The discovery was amazing: tiny molecules called endorphins that work like special keys in the brain. Just like oxytocin sends messages about love and connection, endorphins send messages about movement and energy. When these molecular keys click into their special locks in the brain, they create feelings of happiness and strength.

Think of it like your brain sending different types of thank-you notes. Oxytocin says “Thanks for spending time with people you love!” while endorphins say “Thanks for moving and staying active!” It’s a reward system your body created millions of years ago, back when humans needed extra energy to run after food or away from danger.

But here’s the really interesting part: just like oxytocin isn’t only for hugs, endorphins aren’t only for running. That’s why you feel so good after swimming! These happy messengers also flow when you’re dancing, playing soccer, or jumping on the trampoline. Any time you get moving, your brain starts its chemical celebration.

Your brain actually speaks many chemical languages - some create happiness, others signal fear or anxiety, and some help you focus or stay alert. Each messenger molecule tells your body something important about what’s happening and how to respond. Understanding these messages helps us make sense of our feelings and reactions.

These natural mood-boosters work together like a team, each carrying their own special message through your body. Whether you’re swimming laps, laughing with friends, or listening to your favorite music, your brain is constantly sending these tiny “everything is great!” signals, all made right inside you.

Love, Abba

P.S. Next time you’re feeling down, try combining these messengers - maybe do some jumping jacks with someone you love. Those tiny molecular messengers might just team up to make you feel amazing!