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athlete – n. someone who plays one or more sports or who is active in physical exercise
professional – adj. related to or involving payment for one's work
mortality –n. related to the number of deaths that happen in a time, place or other condition
factor – n. a fact or influence that leads to a result
challenge – n. a test or dispute of some kind
overall – adv. in all parts; taken as a whole
enhance –v. to increase or improve
