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Living Long on Less? Mouse and human cells respond to slim diets
Some animals live longer on reduced-calorie diets, and in a recent experiment people on such diets had many of the cellular changes that those long-lived animals did.
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19804
What were the ages of the people in the study? Henry Dieter WeinschelLas Cruces, N.M. The participants, whose muscle cells showed several more-youthful signs if they ate fewer calories, were 35 to 38 years old. —P. Barry
- Humans
Letters from the March 10, 2007, issue of Science News
Cosmic cling At least on Earth, rock impacts result in charging of the particles (“Rocky Finding: Evidence of extrasolar asteroid belt,” SN: 1/6/07, p.
