What’s on the average manager’s mind? Too much, it would appear. In one of their periodic bedroom surveys, Ashridge Business School found that managers spend fewer than 7 hours asleep at night, and this decreases as seniority increases. Match this up with a long-day no-lunch culture, and this becomes an extremely alarming statistic. 17 hours of sustained wakefulness has been shown to result in changes in behaviour equivalent to drinking 2 glasses of wine. In the UK people who’ve drunk this much aren’t allowed to drive or operate machinery, yet their equivalents are at the helm of some of our largest companies, making really scary decisions, every single day. Should shareholders be worried?