The Ever-Changing Body and Its Constant Mind

Your body replaces every single cell in your skeleton every seven to ten years.

That means you literally have a completely different skeleton than you did a decade ago.

But here's the wild part. Your brain cells are different. Most of them stay

with you for life. They're the only cells that never get replaced. So while your bones

are constantly rebuilding themselves, your neurons are riding with you from birth to death.

Your body is basically a ship that rebuilds itself while sailing, except for the captain's quarters.