Why Do We Itch?

The video explores the sensation of itching, known as pruritus, and its evolutionary purpose as a defense mechanism. It discusses how itching differs from pain, the neurological pathways involved, and the itch-scratch cycle. Historical and modern remedies for itching are also covered, highlighting the complexity and persistence of this sensation.

What is the evolutionary purpose of the itch sensation?

How does scratching provide relief from itching?

Explain the concept of the 'itch-scratch cycle' as described in the text.

What are some historical remedies for itchy skin mentioned in the text?

What are some modern treatments for itchiness mentioned in the text?