Why do our joints snap, crackle and pop? And why can't we stop doing it? Jorge investigates the evolution, psychology and physics of this annoying habit.

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What happens to the things we remember when we can't remember them anymore? Jorge talks to two psychologists about the science of forgetting and the fascinating world of amnesia.

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Some people can remember 100,000 digits of pi, or everything that's ever happened to them. How do they do it? And can anyone learn this skill? Jorge goes down memory lane to find out.

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Do chihuahuas chuckle? Or jaguars joke? Jorge kids around with animal experts to find out if animals can be funny (on purpose).

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NASA is sending astronauts back to the moon. But why? What deep mysteries still hide on the far side of the moon? Jorge jumps over the moon to find out.

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AI is everywhere these days. What happened to make it so powerful all of a sudden? And what is all this AI content doing to our brains? Jorge talks to three experts to find the answers.

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Is there hope for the eternal procrastinator? Jorge gets some tips for living with procrastination from three expert psychologists.

Learn more about our experts' work: 

• procrastinus.com (Dr. Piers Steel) 
• fuschiasirois.com (Dr. Fuschia Sirois)

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We finally got around to it: an episode about procrastination. Why do we do it? Is it really bad? And is there such as a thing as productive procrastination? Jorge talks to three psychologists about the science of putting things off.

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What's the skinny on why we lose our hair? Is it genetic or avoidable? Or do we need to comb over society's stigma about it? Jorge gets to the hairy truth.

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Can we hear echoes like bats, or see x-rays like Superman? Believe it or not, scientists think the answer is yes. Jorge talks to three experts involved in extending human senses.

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What's happening in your brain when you're being imaginative? And can it affect your mental health? Jorge talks to two neuroscientists to imagine the possibilities.

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