Medicine: Capsules, Mar. 4, 1957

<]J At an age (two years) when he should have enjoyed the bounding prime of youth, a Utah beagle's muzzle was grey, his bones brittle, his joints creaky. Reason: since puppyhood, he had received regular injections of radioactive isotopes at the University of Utah's Beagleville (TIME, Dec. 27, 1954). Radiobiologists guessed that constant exposure to internal radiation somehow diminished the beagle's natural resistance to stress, accelerating the aging process. Further studies of radioactive beagles may provide clues to the nature of the aging process in man, suggest ways to impede it.

t| Doctors are learning to control phenyl-pyruvic oligophrenia, a brain-crippling disease...

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