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Study shows hairy skin does not become less sensitive with age - EurekAlert
Our sense of touch is generally thought to decline with age, just like the other senses. However, a study has shown that age-related decline in sensitivity only happens in hairless skin like the tip of the index finger, but not in the hairy cheeks and forearms. The authors speculate that the exceptional sensitivity of the cheeks throughout life is due to our evolutionary history as social primates, for whom touch is an important method of communication.
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