People can become addicted to their struggle and the stress chemicals that come from constant mental chaos

Eben's mentor Jerry taught that 'some people are addicted to their struggle' and Eben adds 'we can become a butterfly addict where we become addicted to this state where the stress chemicals start to flow into our bodies.' He identifies the pattern where people always say 'oh, man. Everything's so crazy' as a sign of addiction to butterflies.