ScienceBlog reports on efforts to create genetic tweaks to prevent obesity. In this study, mice with ramped up metabolisms that burn fat at a higher rate not only stay thinner, but also live longer: “despite their svelte appearance, beta/beta mice actually eat more food and are no more active than their genetically normal littermates … the white adipose tissue, which is normally reserved for fat storage, had actually been converted into fat burning cells in beta/beta mice.” You may recall that scientists recently overturned the common wisdom on metabolism and longevity – mice with more active metabolisms have been shown to live longer, possibly due to a lower rate of free radical creation.
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