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Steroids were blamed for the increase in disabled list activitie in the 1990's. Then why were so many players using steroids to recover from injuries? The use of steroids is a balancing act, the idea being to push the muscles as far as they will go without having them break down, to become as strong as possible.
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A Mayo Clinic-led research collaboration has discovered that the protein MDC1 amplifies weak DNA injury signals so genetic repair can begin. Once amplified, even low-level damage signals become strong enough to activate the cell's natural repair processe
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