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2017届高考英语二轮专题总复习精选综合能力专练：阅读理解16 THURSDAY, July 9 ( HealthDay News) — A new study that found that a lowercalorie diet slowed the aging process in monkeys could be the best proof yet that restricted diets might do the same for humans. “The big question in aging research is, ‘Will caloric restriction in species closely related to humans slow aging？’” said Richard Weindruch, senior author of a paper appearing in the July 10 issue of Science.This is the first clear demonstration that, in a primate species, we’ re inducing a slowdown of the aging process — showing increased survival, resistance to disease, less brain atrophy and less muscle loss. “This predicts humans would respond similarly，” added Weindruch, professor of medicine at the University of Wisconsin and an investigator at the Veterans Hospital in Madison. Another expert noted that, despite some highly publicized studies in certain species, the link between restricted eating and longer lifespan has been far from proven. “The idea that dietary restriction extends lifespan in all species is not true. Many strains of rats and mice do not respond. In some strains, it’ s actually deleterious，” explained Felipe Sierra, director of the biology of aging program at the US National Institute on Aging (NIA), which supported the new study. “The fact that it doesn’t work in some mice but it does seem to work in monkeys is surprising and it gives us hope.” | 
