After 25, your brain's limbic system keeps maturing, controlling how you handle emotions. Your 87 billion neurons each make 5,000 connections. A stronger heart pumps more blood to your brain, which is why aerobic fitness matters more than most people think.
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You're right, after 25 things just click and make a bit more sense.
Yeah, things start to develop. Your limbic system, which is where your emotional control is, and we're going to talk about the things that I see differently with my high-performing athletes as opposed to an everyday athlete. So that fully develops at around 25, and you've got around 87 billion neurons. They are brain cells. They all have around 5,000 connections per cell, so you've got a lot of activity happening in your brain. So we need to be feeding it with oxygen and nutrients. And that comes from the blood. So the better your heart is, and we get that from aerobic training, the better conditioned it is to be delivering that blood to your brain.