On a typical training ride in Spain’s Sierra Nevada, Tokyo Olympics triathlon champion Kristian Blummenfelt might start near Granada, at around 3,000 feet above sea level, and finish as high as 10,000 ...

Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. Quick background: muscle oxygen ...

Healthcare workers from 42 medial facilities in seven counties in Rift Valley undergo training on oxygen safety protocols in Nakuru. [Nanjinia Wamuswa, Standard] Health workers have been urged to ...