When I was 30-32, I got up at about 04:30 - 05:00 every day. For the first few years, I ran 9km every other day, but I switched to using an elliptical trainer for 30 minutes every morning (including weekends) after I started getting shin splints from running. In both cases, I would do some work with free weights every other day.<p>That was when I had a systems engineering job with very consistent, predictable hours. It&#x27;s a lot harder to maintain that kind of schedule when there are crunches and other factors that interfere with a routine.<p>It&#x27;s certainly possible that some or all of the CEOs in question are distorting the facts, but it&#x27;s not <i>out of the question</i> that they&#x27;re accurately describing their day.