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Michael Rae, on a weekday morning run near his suburban Philadelphia home (From the book What I Eat: Around the World in 80 Diets.) The caloric value of his day's worth of food in July was fixed at 1,900 kcals. He is 32; 5'11,5" and 114 pounds. Michael is research assistant to the theoretician and biomedical gerontologist Aubrey de Grey, and they are the coauthors of the book Ending Aging.