Worn-out running shoes can mess up your comfort, your runs, and even your feet. This article lays out simple, no-nonsense ways to spot when it’s time for a new pair. Learn the clear warning signs, how long shoes really last, and why waiting too long isn’t worth the risk. Find out what to check for on your old trainers and get tips for making your next pair last longer. Don’t guess—get the facts and run smarter.