5. A balanced pH
Your body prefers the blood’s pH to be at around 7.4—on the alkaline side of neutral. And it will do a lot to keep it there, including, some say, pulling minerals out of your bones to counteract elevated acidity, which can be caused to an excess of foods very common in our modern diet, including red meat, sugar and refined grains. Stone profiles voice coach Thomas Appell, who has been following a low-acid diet packed with fresh fruits and vegetables (and absent of sugar and meat) since 2002—and he says he’s reaped the health benefits ever since. Want to get in on the secret? Boost your intake of fresh vegetables, especially leafy greens, and cut back on processed foods. Even if you don’t believe in the pH theory, you’ll be taking in more nutrients—and that can only help your health.