At forty-four, acclaimed cardiologist John Day was overweight and suffered from insomnia, degenerative joint disease, high blood pressure, and high cholesterol. On six medications and suffering constant aches, he needed to make a change. While lecturing in China, he<U+2019>d heard about a remote mountainous region known as Longevity Village, a wellness Shangri-La free of heart disease, cancer, diabetes, obesity, dementia, depression, and insomnia, and where living past one hundred<U+2014>in good health<U+2014>is not uncommon. In the hope of understanding this incredible phenomenon, Day, a Mandarin speaker, decided to spend some time living in Longevity Village. He learned everything he could about this place and its people, and met its centenarians. His research revealed seven principles that work in tandem to create health, happiness, and longevity<U+2014>rules he applied to his own life. Six months later, he<U+2019>d lost thirty pounds, dropped one hundred points off his cholesterol and twenty-five points off his blood pressure, and was even cured of his acid reflux and insomnia. In 2014 he began a series of four-month support groups comprised of patients who worked together to apply the lessons of Longevity Village to their lives. Ninety-two percent of the participants were able to adhere to their plans and stay on pace to reach their health goals.