Why Do We Blush?

The video explores blushing as a unique human expression, described by Charles Darwin as peculiar and human. It explains the physiological process involving the sympathetic nervous system and adrenaline, leading to vasodilation and facial redness. The video also discusses the social and evolutionary aspects, suggesting blushing may serve as a social survival trait, signaling apology or embarrassment, similar to behaviors seen in animals.

What did Charles Darwin describe as the most peculiar and human of all expressions?

• Crying

• Smiling

• Blushing

• Laughter

Which system in the body is responsible for triggering the blushing response?

• Sympathetic nervous system

• Digestive system

• Respiratory system

• Endocrine system

What chemical transmitter is specifically involved in the blushing process?

• Adenyl Cyclase

• Serotonin

• Cortisol

• Dopamine

Why do some scientists believe blushing evolved as a social trait?

• To improve oxygen flow

• To signal physical fitness

• To communicate remorse or embarrassment

• To enhance memory retention

What animal behavior is compared to human blushing in the video?

• A cat purring

• A fish swimming in circles

• A dog rolling onto its back

• A bird singing