In health class, we often learned about food pyramids. Whole grains are on the bottom, because we need 5-7 servings per day. At the next level, we have fruits and veggies (two servings a day each), then meats and proteins (2-3 servings), followed by fats, sugars, and salts, which should be consumed rarely. In a new book entitled The Nature Fix: Why Nature Makes Us Happier, Healthier, and More Creative, Florence Williams prescribes a similar regimen of nature excursions to make us our best selves.

Read the entire blog at the Duke Nicholas School.