In sliding sports, the all-important clock tallies the forces of speed by time. But there is one variable every skeleton, luge and bobsled athlete always wants more of: Weight.

US four-man bobsled team of Frankie Del Duca, Jimmy Reed, Carlos Valdes and Hakeem Abdul-Saboor are trying to get to the very upper limit of the allowed weight to maximize speed and five-time Olympian Katie Uhlaender explains how making yourself heavy is about being light in your mental approach.

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