Considering our wellbeing, everything really comes down to diet and circumstance. In the use of the word "diet," note how we've misconstrued the meaning to embrace the idea of deprivation vs. abundance. "Diet," is what we consume. It is our nutrition. It is our sustenance. (Circumstance is very complex: and for another posting.) If one can afford to, paying attention to diet is one of the very best things we can do to achieve and maintain optimal "performance" (again, a loaded and often mis-understood word). Our body longs for homeostasis, and works super hard to achieve it: we can assist by learning a bit or buying an amazing cookbook or two to educate. For those short on time but eager to eat well, consider "Super Foods, Super Fast" by Julie Montagu. She's heavy on the coconut oil, but simply substitute olive oil or avocado oil or something if the coconut oil is not your thing. For those longer on time, Heidi Swanson's "Super Natural Every Day" is AMAZING.