Argentine Olympic equestrian Jose Maria Larocca takes his laptop to competitions. He is on the phone a lot at riding events. He is normally the last competitor to arrive and the first to leave. Between the ages of 24 and 34 he did not ride at all.
Why? Because he is one of the most influential oil traders in the world, as well as a show jumper at the Tokyo Games.
He claims to get at least seven hours' sleep at night.