每日背誦第一期14
Have you ever thought about why people are ticklish? According to scientists, ticklishness is a defense mechanism humans developed against bugs, spiders, and other critters that may be touching our skin. Feeling ticklish is our built-in response to predators or threats, and combines the sensations of touch and pain.
你有沒有想過人為什么會怕癢？根據(jù)科學家的觀點，怕癢是一種防御機制，是人類把它培養(yǎng)來對付那些可能接觸我們皮膚的蟲子、蜘蛛或其它生物。怕癢是我們對侵擾者或威脅產生的內在反應，它使觸覺和痛覺結合起來了。
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