Interesting experiment - we implemented 90 minute sprints, 3x a day for our workdays at my first startup. Thinking was that as former soccer players, a 90 minut

Interesting experiment - we implemented 90 minute sprints, 3x a day for our workdays at my first startup. Thinking was that as former soccer players, a 90 minute game was our peak performance; our bodies and minds were pretty conditioned to 90 minute stretches. It worked really well!