I can only speak for myself, but I don't even consume much caffeine anymore and still maintain 80+ hours. Between managing people, building products, meeting wi

I can only speak for myself, but I don't even consume much caffeine anymore and still maintain 80+ hours. Between managing people, building products, meeting with clients, documentation, and more I always have something I can do that doesn't require my maximum performance at the moment. In fact, I'd go as far as to say my personal lifestyle and habits (eating healthy, maintaining daily exercise, blah blah) are massive contributors to my having sustained this consistent output since 2012.