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bitter – ad. intensely unpleasant especially in coldness or rawness <a bitter wind>
replicate – v. to repeat or copy (something) exactly
10K – n. a long-distance road running competition over a distance of ten kilometers (6.2 miles)
chamber – n. a room used for a special purpose
mechanism – n. a process or system that is used to produce a particular result
strain – n. an injury to a body part or muscle that is caused by too much tension, effort, or use
thermal – adj. of, relating to, or caused by heat : designed to keep you warm by preventing heat from leaving your body
dehydration – n. to lose too much water
stress – n. physical force or pressure
personal best – phrase the best achievement one has ever had <Her time in the race was a personal best.>
