WHEN YOU’RE in the presence of an active, vivacious child, do you ever say to yourself, “I remember myself at that age—so healthy, vibrant, and bursting with energy and ambition. Where did that spirit go? Why did I lose it? And how can I get it back?” You certainly can...

“Prolonged heat over 48°C (118°F) kills enzymes; cooking temperatures destroy 100 percent of the enzymes in food. What is left is enzyme-less food that makes up the bulk of the modern enzyme-deficient diet. With such heavy withdrawals of enzymes needed to digest an almost-all-cooked diet, it’s not hard to see...