Researchers used to think that how and why you age was all wrapped up in your genes. They believed that your DNA bound you to your aging destiny as tightly and unwaveringly as gravity binds Earth to its orbit around the sun. The science now shows, however, that this way of thinking about aging was totally wrong. Your genes are not calling the aging shots, you are. You make lifestyle choices. You choose your diet and, in large part, your environment. And these all play absolutely enormous roles in determining how healthily you age, and how long you live. Browse our Aging & Healthy Living series to learn more about how your daily decisions influence how you age.