Everything you do, say, think, feel, and every action you initiate matters. Every relationship is significant and every choice you make, no matter how small, has enormous consequences. No matter how your day begins, by nightfall, you can be sure you have made at least 100 choices and each one has significantly changed your life, your body, your blood pressure, your friendships, your weight, your work, your finances, and the quality of your life---and the lives of countless individuals, most of whom you will never meet.