Los Angeles is in constant flux. Arranged into six categories, L.A. Influential presents people of all ages, backgrounds and fields, who are making a difference. Come back each Sunday for more stories on the moguls, artists, community leaders and others shaping the city now. First up, The Creators.

Graham Cooper and Adrian Ballinger, California mountaineers whose training for Mt. Everest included sleeping for months in hypoxic tents that mimic conditions at extreme altitude, reached the world’s highest summit this week.