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Why does running water make us want to use the toilet? episode artwork

EPISODE · May 22, 2026 · 22 MIN

Why does running water make us want to use the toilet?

from Ask the Naked Scientists · host Dr Chris Smith

Why does running water make us want to go to the bathroom? What is IQ, and can you improve it? What is a Pica craving? Why isn't sperm damaged when it's frozen? Is there any evidence that links COVID vaccines to cancer rates? Is there a test to check whether honey is authentic or adulterated? What are hempcrete building materials? Why does it take so long to enrich uranium? What causes shingles? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

What this episode covers

Why does running water make us want to go to the bathroom? What is IQ, and can you improve it? What is a Pica craving? Why isn't sperm damaged when it's frozen? Is there any evidence that links COVID vaccines to cancer rates? Is there a test to check whether honey is authentic or adulterated? What are hempcrete building materials? Why does it take so long to enrich uranium? What causes shingles? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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Why does running water make us want to use the toilet?

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Frequently Asked Questions

How long is this episode of Ask the Naked Scientists?

This episode is 22 minutes long.

When was this Ask the Naked Scientists episode published?

This episode was published on May 22, 2026.

What is this episode about?

Why does running water make us want to go to the bathroom? What is IQ, and can you improve it? What is a Pica craving? Why isn't sperm damaged when it's frozen? Is there any evidence that links COVID vaccines to cancer rates? Is there a test to...

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