sciencehabit writes: Every day, our cells manufacture small amounts of a molecule that, in higher doses, might be the key to leading a longer, healthier life. A team of researchers has found that this molecule boosts the lifespan of worms by more than 50%, raising the possibility that it will increase human longevity. Dietary supplements that contain the molecule and allegedly build muscle are already on the market. The study drops a barbell on their use, however, by suggesting that the molecule may actually thwart muscle growth.
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