Machteld Huber distilled four useful parameters from the Blue Zones, where people live longer than average: eat mainly fresh, unprocessed, local, seasonal foods, lead an active, natural, physical life (walking, gardening, etc.), live with a sense of purpose, and be part of a community. That's it.

Now ask yourself the question: how many of these 4 crucial ingredients is your current life, work and living environment offering you? Your health and happiness depend on that answer.