> Tim Cook, Apple’s CEO, gets on the treadmill by five in the morning. Jack Dorsey, Twitter’s boss, is a fan of squats, push-ups and jogging. Brian Chesky, a co-founder of Airbnb, was once a competitive bodybuilder. Jeff Bezos and Elon Musk both reportedly have “pecs to die for”.<p>Tech executives are the celebrities of this community, and this is gossip-rag level reporting.