Running Myths: 5 Truths for 2026 Health

There’s a staggering amount of bad advice surrounding running, especially if you’re new to it. Cutting through the nonsense is the only way to have a safe, effective, and fun time out there, making sure running actually helps your health instead of hurting it.

Myth 1: You need to run every day to see results

A lot of new runners get it in their head that they have to run every single day, thinking that’s what consistency means. This is a classic trap. Your body absolutely needs time to adapt and recover, especially when you’re just starting out. Running puts a ton of stress on your muscles, bones, and connective tissues, and those parts of you need rest days to repair and get stronger. If you don’t give them that time, your injury risk goes through the roof. The American College of Sports Medicine (ACSM) says beginners should really only be running three to four days a week, with rest or other activities like cycling or swimming on the off days, which they lay out in their exercise prescription guidelines (ACSM.org). I always tell new clients to start with a run-walk plan. For example, go out for 30 minutes and just alternate one minute of running with two minutes of walking. Over a few weeks, you can start making the running parts longer and the walking parts shorter. This method, which coaches like Jeff Galloway have championed for years, lets your whole system adapt without getting completely overwhelmed. I’ve seen so many enthusiastic beginners get sidelined for months with shin splints or even stress fractures because they went too hard, too fast and ignored that you need both progressive work and recovery. Smart, sustainable progression is what gets you results, not just grinding it out every single day.

Myth 2: Any old sneakers will do for running

This one is a dangerous idea and a fast track to getting hurt. Your regular gym shoes or casual sneakers just aren’t built for the kind of repetitive pounding that comes with running. Real running shoes are specifically engineered with cushioning and stability features to absorb that shock, guide your foot through a proper stride, and protect your joints. The wrong shoes can make existing foot problems worse or cause new ones like plantar fasciitis and Achilles tendinitis. Think about the force for a second: with every stride, your feet are hitting the ground with two to three times your body weight. That adds up fast over the thousands of steps you take on a single run. A good pair of running shoes spreads that impact out, gives your arch the support it needs, and has room for your foot to swell a bit (which it will). A study in the Journal of Sports Sciences confirmed just how big a role the right shoes play in preventing injuries for runners (Taylor & Francis Online). I always tell people to go to a specialized running store. The staff there can watch you run, figure out your foot type (like if you’re a pronator or supinator), and point you to shoes that actually work for you from brands like Brooks, Saucony, Hoka, or New Balance. Don’t cheap out on this. It’s an investment in staying injury-free. And don’t forget that shoes have a shelf life. You’ve got to replace them every 300 to 500 miles, which for a consistent runner is about every 4 to 6 months. The shoe’s cushioning just wears out and the support structure breaks down, even when they still look okay on the outside.

Myth 3: You need to stretch extensively before a run

That classic image of a runner holding a deep stretch before a race is completely outdated and can even be counterproductive. Holding a stretch for 20-30 seconds (that’s static stretching) right before you run can reduce your muscle power and might even make you more likely to get hurt. A complete review in the Scandinavian Journal of Medicine & Science in Sports found that pre-exercise static stretching could have a negative effect on performance and doesn’t really prevent injuries anyway (Wiley Online Library). What you actually need before a run is a dynamic warm-up. This means doing movements that look a bit like running itself, getting your body ready for what’s coming. I’m talking about things like leg swings, high knees, butt kicks, and walking lunges. These movements get your blood flowing, open up your range of motion, and basically wake up the exact muscles you’re about to use. A good dynamic warm-up only takes about 5 to 10 minutes. A few minutes of easy jogging and then a few of those drills will prepare you way better than just standing there holding a hamstring stretch. You should save the long, static stretches for *after* your run when your muscles are warm. Post-run stretching can help with your overall flexibility and recovery, but even then, it should feel gentle, not forced or painful.

Myth 4: Carbs are bad and should be avoided if you run

This idea is a hangover from all those low-carb diet fads, and it’s terrible advice for runners. For any runner, carbohydrates are the main fuel source. Your body converts them into glucose and then stores that as glycogen in your muscles and liver. That stored glycogen is what fuels you during your run. If you don’t have enough glycogen, you’ll hit the wall, feel exhausted, and your run will be miserable. People who do a lot of endurance training, runners included, need a steady supply of carbs to power through their workouts and recover properly. According to the International Society of Sports Nutrition (ISSN), athletes should be eating somewhere between 3 and 12 grams of carbohydrates per kilogram of body weight each day, depending on how much and how hard they’re training (Journal of the International Society of Sports Nutrition). That’s a wide range, of course, because everyone’s needs are different. If you’re a beginner running a few times a week for 30-60 minutes, something in the lower to middle part of that range is probably right. You want to get them from good complex carb sources like whole grains (oats, brown rice, whole-wheat bread), fruits, vegetables, and legumes. And for quick energy on longer runs, some simple carbs can be helpful. Carbs are your ally here. Trying to run without them is like trying to drive a car on empty.

Myth 5: Running will destroy your knees

This is probably the most persistent and destructive myth about running. So many people won’t even try running because they’re convinced it will automatically lead to arthritis and ruined joints. While running does put stress on your knees, study after study shows that recreational running doesn’t increase your risk of knee osteoarthritis and might even be good for them. For instance, major research published in Arthritis & Rheumatology found that people who run for fun actually have a lower chance of getting knee osteoarthritis than people who are sedentary (Arthritis & Rheumatology). The real keys are using proper form, building up your mileage slowly, and doing strength work for the muscles around your knees. If your quads, hamstrings, and glutes are weak, it can create imbalances that put way too much strain on the knee joint itself. Adding exercises like squats, lunges, and glute bridges to your routine a couple of times a week can make a huge difference in protecting your knees. You have to listen to your body. Pain that sticks around is a signal to back off, not something to power through. Taking care of small problems early with some rest, ice, or a trip to a physical therapist can stop them from turning into something that sidelines you for months. Running is a totally natural movement, and if you train smart, your knees can absolutely handle it. In fact, that repetitive loading from running can even make your cartilage and bones stronger. There’s a lot of conflicting advice out there which can feel overwhelming, but if you just get these common myths out of your head, you can build a running habit that’s healthy and lasts.