It wasn't just Lewis and Clark

You might think a healthy brain starts and ends in your head – but there are miles and miles of neuron fibers that connect your brain with nearly every corner of your body. Why a healthy brain needs a healthy body. *** Thank you for listening. Help power On Point by making a donation here: wbur.org/giveonpoint

A tunnel. A bright light. Reuniting with deceased loved ones. Many people who have near-death experiences have remarkably similar stories. Why? *** Thank you for listening. Help power On Point by making a donation here: wbur.org/giveonpoint

The rate at which artificial intelligence is able to replicate human behavior has increased in recent years. Does that mean it's thinking like us? In the third episode of "Brainwaves," what artificial intelligence teaches us about our own capacity for thought. *** Thank you for listening. Help power On Point by making a donation here: wbur.org/giveonpoint

Consciousness is how we are able to feel, dream and imagine. And yet -- scientists haven't figured out how consciousness definitively works. What we know, what we don’t and what that tells us about our brains. *** Thank you for listening. Help power On Point by making a donation here: wbur.org/giveonpoint

The brain is the organ that makes us who we are. It’s our conduit between reality and thought. But somehow, we’ve only scratched the surface in understanding how the brain actually works. *** Thank you for listening. Help power On Point by making a donation here: wbur.org/giveonpoint

On Point news analyst Jack Beatty has an epiphany: Retrofitting should be the defining goal of our civilization. *** Thank you for listening. Help power On Point by making a donation here: wbur.org/giveonpoint

Lewis and Clark became American legends. But they didn’t explore the West alone. A new book profiles the forgotten members of the Corps of Discovery and their remarkable stories. *** Thank you for listening. Help power On Point by making a donation here: wbur.org/giveonpoint

Ahmed Fouad Alkhatib is a pro-Palestinian, anti-Hamas expert who grew up in Gaza City. He says a realistic path to peace in the Middle East requires different thinking. *** Thank you for listening. Help power On Point by making a donation here: wbur.org/giveonpoint

Texas has a new statewide mandatory reading list for all public school students -- with whole books on the curriculum. Should other states follow suit? *** Thank you for listening. Help power On Point by making a donation here: wbur.org/giveonpoint

Wisconsin elected the first-ever socialist member of Congress in 1910, and Milwaukee was run by socialist mayors for some 50 years. Now, a Democratic socialist is leading a primary race for Wisconsin governor. *** Thank you for listening. Help power On Point by making a donation here: wbur.org/giveonpoint