We all know that exercise makes us feel better, but most of us have no idea why. We assume it's because we're burning off stress or boosting endorphins. But the real reason we feel so good when we exercise is that it makes the brain function at its best. And in my opinion this benefit is far more important than what it does for the body.Building muscles, conditioning the heart and lungs are essentially side effects. Nowadays we spend most of our time sitting behind a desk or lying on the couch, and we have basically removed movement from our lives.Our ancestors had to walk five to ten miles on an average day, just to be able to eat.Since it takes tens of thousands of years for our biology to evolve, you can see there's a huge mismatch between our lifestyle and our genes.The brain isn't a fixed organ that cannot be changed. It's adaptable and it can increase in size like any other muscle on your body. Or in the koala's case, decrease in size.So guess what turns out to be the best thing you can do for you brain today. That's right, physical exercise.Get the Spark book here:US: https://amzn.to/30j58YbEU: https://amzn.to/2kgBUBw

Ver todos los episodios