H-HEALTHY LIVING

Aug 12, 2013 1:13 PM by NBC News

Yawning contagious, even for dogs

Studies have proven that yawning is contagious, and new research suggests man's best friend is not exempt.

Researchers in Tokyo found dogs yawn when they see a human yawn, especially if it is their owner.

They also found their heart rate doesn't increase when they yawn, eliminating the theory that dogs yawn as a sign of distress.

The researchers say dogs yawning in reaction to their owner is an emotional reaction.

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