Both walking and running can improve heart health, aid weight management, and boost mood — but the right choice depends on your fitness level, goals, and joints. Here’s what the research actually says. If you’ve ever laced up your shoes and wondered whether you should stroll or sprint your way to better health, you’re not alone. Walking and running are the two most accessible forms of exercise on the planet — no gym membership, no equipment, no learning curve. But they’re not interchangeable, and picking the wrong one for your body or your goals can slow your progress or even lead to injury. This guide breaks down the real differences…