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Diseases & Conditions
You don’t say? Does that tickle?
Ever wonder why people are ticklish? If so, you’re not alone. Great minds such as Aristotle, Sigmund Freud, and Charles Darwin also have pondered the subject. Yet no one knows for sure.
Ticklishness falls into one of two categories: gargalesis (the kind that makes you laugh and squirm) and knismesis (the disconcerting or itchy sensation like a feather brushing lightly over your skin, also known as light-touch tickling).
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About the Author
Matthew Solan, Executive Editor, Harvard Men's Health Watch
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