Medicine: How Are Your Eosinophils?

Before & after the Yale-Harvard boat race at New London last year, a professional-looking fellow stepped up to each member of the Harvard crew, including the coxswain, pricked the lobe of one ear and drew a single drop of blood. He was Dr. Albert E. Renold, research fellow at Harvard Medical School, popularly known to the boys as Dr. Vampire.

No vampire, Renold was one of a team which was testing the oarsmen's reactions to stress. Dr. George W. Thorn (TIME, May 21) acted on the theory that in a normal, healthy reaction to physical or emotional stress the adrenal cortex is...

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