Steroids are so 2008. The next way to get an edge may be gene doping.
Consider "Marathon Mouse," a rodent with an artificially tweaked protein gene that made him run twice as far as normal mice.
Want to know if your child has a future in track? Make junior say "Ah..." for a cheek swab to see if he has a gene common in fast runners.
Have an injury that just won't heal quickly enough for a game? Scientists are coming up with ways to seal those muscle tears like the cheerleader heals herself on "Heroes."
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