The brain is like a really fancy restaurant. Itês picky about who it lets inside. You have to be one of the privileged few. But even fancy restaurants need to be cleaned up and protected, right? Who does the dirty work? In this episode...

Decades of scientific research into Alzheimer’s have failed to find a cure. Little is known about the degenerative brain disease—but this may be about to change.

The neuron. It is perhaps the most important cell in the human body. We have billions in our body and together they form a superhighway that sends information throughout our mind and body. But can you name the different parts? Alie...