Sep 8 • General discussion
🧠Why Training Your Body is Training Your Brain 💪
I’ve been diving into the science of how exercise shapes not just our muscles, but also our brains and intelligence. And honestly, the evidence from the last decade is too powerful to ignore.
📚 Since around 2015, research has been showing that when we train consistently, the brain changes too. Kids and teenagers who exercise regularly don’t just get fitter they actually score higher on intelligence tests. A big meta-analysis from Pediatrics (2024) found that physical activity improved IQ by an average of about 4 points. Think about that: just by moving your body, you can literally get smarter.
👩‍💻 For adults, the story is more about mental sharpness. Studies on executive functions things like focus, memory, and decision making consistently show that exercise gives us a measurable edge. Whether it’s lifting weights, running, or doing a mix, the brain responds by becoming more efficient.
👴 For older adults, this might be the most powerful tool we have. Some trials have shown that a few months of structured training can actually increase hippocampal volume the part of the brain tied to memory. Even when the volume doesn’t grow, exercise slows down the shrinkage that naturally happens with age.
The mechanism? One word: BDNF. It’s a growth factor that rises every time we train, helping neurons survive, grow, and connect. Basically, it’s like Miracle-Gro for your brain.
So here’s my takeaway for all of us here: if you’re training just for the mirror, you’re missing half the picture. Every squat, every sprint, every push-up is literally rewiring your brain for sharper thinking, better focus, and yes even higher intelligence.
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🧠Why Training Your Body is Training Your Brain 💪
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