Category Archives: the brain

Ep 197: right brain, left side body; left brain, right side body… why?



right brain, left side body; left brain, right side body… why?

Our brains have crossed wires. Each cerebral hemisphere controls the opposite side of the body. When I move my left hand, it’s my right brain that’s doing it. Today, Phil and I look at a theory about how and why that’s true for us, and every other animal with a spine.
Continue reading Ep 197: right brain, left side body; left brain, right side body… why?


Ep 196: How neurons find their home



How neurons find their home

Even before birth, billions of brain cells have to figure out what sort of cell to be, where to be, and which other neurons to connect to. Today we talk about the complicated processes that help neurons find their home.
Continue reading Ep 196: How neurons find their home


Ep 195: Baby’s brain before birth



Baby’s brain before birth

As we continue our close look at the human brain, we take some time to look at how it grows and develops. The story starts before you are born, when a man and woman love each other very much, and…
Continue reading Ep 195: Baby’s brain before birth


Ep 194: The lowly, yet complex, neuron



The lowly, yet complex, neuron

Finally done with natural history, today we start talking about the brain. It is extremely complicated. Even a single brain cell, one neuron, is an intricate little machine. Today we take a look at the neuron, and how it sends signals.