so true. Stress leads to burn out state which has to be one of the biggest productivity issues. The body and mind go into this odd state where they are looking for instant small boosts to feel good. Food is an obvious feel-good with many obvious 'next stage' boosts that people opt to get 'rewards' from. You could write the same article about alcohol, excessive gaming or excessive social media consumption. Personally, keeping an eye on the level of burn out is one of the most important lessons so far.