You probably recognize that longevity matters. Running improves your health, your energy, and your mood, so you want to keep chasing miles. But as runners get older, the priorities often shift a little. Many runners notice issues like stiffness or small aches become more noticeable with age, and recovery time can increase. While many factors can come into play, you might wonder whether your form could use an upgrade. In The Runner’s World Guide to Running Form , clinical exercise physiologist Heather Milton will help us look at runners over 40, highlight a few common patterns we often see in masters runners, and talk about the adjustments that can support strong, sustainable running in the long term.…