Lousy. Cooties. Nit-picking. Our very language reflects revulsion at the idea of creatures living, crawling, breeding on our
scalps. Yet scientists at the Harvard School of Public Health counsel against jumping to conclusions. A
few lice on the head should not cause alarm, says Richard Pollack. And, contrary to popular belief, these equal-opportunity parasites are not evidence of poor hygiene. So why do we worry about them? How can we respond sanely?
Read our question-and-answer essay, then share your thoughts in our
You can also read the NATIONAL GEOGRAPHIC story, Body Beasts.
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