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