Life's Little Questions II | 2000

Documentary
Host Alan Alda visits the lab of Christine Harris, a University of California, San Diego, psychologist, to ask: Why can't humans tickle themselves and what makes them ticklish in the first place? Alda asks Robert ...more

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Synopsis

Host Alan Alda visits the lab of Christine Harris, a University of California, San Diego, psychologist, to ask: Why can't humans tickle themselves and what makes them ticklish in the first place? Alda asks Robert Provine at the University of Maryland Baltimore County: What is laughter and why do people laugh? Also, Ronald Turner of the Medical University of South Carolina is asked: Why can't scientists cure the common cold?

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