Why Do Our Noses Run in the Cold?

The video humorously describes a runny nose scenario on a first date, explaining the biological and physical reasons behind it. Biology causes increased mucus production to warm and moisturize cold air, while physics explains how exhaled water vapor condenses into droplets on the nose. The video suggests that next time, a less embarrassing activity like bowling might be a better choice.

What new insight or understanding did you gain from this video?

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