When is the last time someone took a candid picture of you? Do you notice yourself slouching in the image? Aging drags the shoulders forward and the head down, putting undue pressure on your spine and nervous system. But don’t worry; you can start correcting your posture today with this simple change: While at the computer, sit upright with your head looking up at your monitor, instead of down, keeping your back straight up against your chair and your feet on the floor. Adjust your monitor so your eyes are level with the bottom of your screen.