woman smiling and feeling energetic after cardio workout

Workout routines

5 cardio myths that are holding you back

By Sarah Miller

Published: 22 May 2025

“The only bad workout is the one that didn’t happen. So, lace up those sneakers and let’s debunk some myths!”

5 Cardio Myths That Are Holding You Back

Okay, let's get real for a sec. Cardio. The word alone can send shivers down some spines. Maybe you’re thinking of endless hours on a treadmill, feeling like a hamster on a wheel. Or perhaps you've bought into some common misconceptions that have you avoiding it altogether. Well, I'm here to tell ya, it doesn't have to be that way! I've been there, done that, and bought the slightly-too-tight Lycra to prove it. Let’s tackle these myths head-on and find out how to actually enjoy getting your heart pumping. Trust me, your body (and mind!) will thank you.
woman grimacing while running on a treadmill

woman grimacing while running on a treadmill | Image: Supplied

Myth #1: Cardio Is Only for Weight Loss

So, here’s a common one: cardio is just for shedding pounds. Nope! That’s like saying chocolate is only good for dessert. (Which, let’s be honest, is a pretty great use, but I digress.) Cardio does help with weight management, but it's so much more than that. Think of it as a tune-up for your entire system.

  • Heart Health: Keeps your ticker in tip-top shape. Seriously, your heart will thank you.
  • Mood Booster: Ever noticed how you feel amazing after a good run? Endorphins, baby! They're like little happiness ninjas.
  • Energy Levels: Believe it or not, expending energy actually gives you energy. It's a paradox, I know, but it works!

I remember when I was training for a half-marathon (yes, I’m slightly insane). I wasn’t just focused on the weight; I was loving the mental clarity and the feeling of being unstoppable. It's about the whole package, folks.

woman smiling after a run in a park

woman smiling after a run in a park | Image: Supplied

Myth #2: You Need to Run for Hours to See Results

Oh, the dreaded hours on the treadmill. Who has time for that? Here’s the good news: you don’t need to dedicate your entire day to cardio to reap the rewards. Short, intense bursts can be just as effective, if not more so.

  • HIIT Workouts: High-Intensity Interval Training is your friend. Think sprints followed by recovery periods. It's quick, efficient, and burns a ton of calories.
  • Tabata Training: Even shorter! 20 seconds of all-out effort followed by 10 seconds of rest, repeated for a few rounds. Perfect for busy bees.
  • Incorporate Intervals: Even a brisk walk can become a cardio workout if you add short bursts of jogging or power walking.

I used to think I needed to clock miles and miles to get any benefit. But now, I'm all about those quick HIIT sessions. I can squeeze them in during my lunch break, and honestly, I feel amazing afterward. It's all about working smarter, not harder… well, maybe a little harder, but for a shorter amount of time!

woman doing HIIT exercises outdoors

woman doing HIIT exercises outdoors | Image: Supplied

Myth #3: Cardio Burns Muscle

Okay, this is a tricky one. Yes, excessive cardio can lead to muscle loss, especially if you're not fueling your body properly. But that doesn’t mean you should ditch cardio altogether. It's about finding the right balance.

  • Proper Nutrition: Make sure you’re eating enough protein to support muscle growth and repair. Think chicken, fish, beans, or tofu.
  • Strength Training: Don’t neglect the weights! Building muscle will help you burn more calories at rest and prevent muscle loss during cardio.
  • Moderate Cardio: Stick to moderate-intensity cardio for reasonable durations. You don’t need to be running marathons every week.

I actually saw this happen to a friend. She was obsessed with cardio, but barely ate any protein. She ended up feeling weak and losing muscle mass. It was a wake-up call for both of us to prioritize a balanced approach. Now, I always make sure to hit the weights and fuel up with a protein-packed snack after my workouts. A girl gotta eat!

woman lifting weights in a gym

woman lifting weights in a gym | Image: Supplied

Myth #4: The Treadmill Is the Only Option

If the thought of another treadmill session makes you want to scream, I get it. Luckily, there’s a whole world of cardio activities out there just waiting to be explored!

  • Dancing: Put on some music and bust a move! It's fun, energizing, and a great workout.
  • Swimming: Low-impact and a full-body workout. Perfect if you have joint issues.
  • Hiking: Get outdoors and enjoy nature while getting your heart rate up.
  • Cycling: Whether it's on the road or in a spin class, cycling is a fantastic cardio option.

Honestly, I hate treadmills! I find them incredibly boring. That's why I love hiking. One of my friends told me about their fun hiking experience in the mountains and the scenic beauty they encountered! A perfect way to get in some cardio while enjoying some fresh air and beautiful scenery.

group of people hiking in mountains

group of people hiking in mountains | Image: Supplied

Myth #5: You Need to Push Yourself to the Limit Every Time

No, no, and NO! This is a recipe for burnout and injury. Cardio isn’t about punishing yourself; it’s about taking care of your body. Listen to your body and adjust accordingly.

  • Rest and Recovery: Allow your body time to recover between workouts. Overtraining can lead to fatigue and injuries.
  • Vary Your Intensity: Not every workout needs to be a sprint. Some days, opt for a gentle walk or a leisurely bike ride.
  • Listen to Your Body: If you’re feeling pain, stop! Pushing through it can make things worse.

I learned this the hard way. I pushed myself too hard during a training session and ended up with a nasty knee injury. It took weeks to recover, and I realized I needed to be kinder to myself. Remember, consistency is key. It's better to do a little bit regularly than to go all-out and then burn out.

woman stretching after workout

woman stretching after workout | Image: Supplied

So, there you have it! Five cardio myths, busted! Now, go out there and find an activity that you actually enjoy. Whether it's dancing, swimming, hiking, or even a quick HIIT session, the key is to move your body and have fun while doing it. You got this! What does this mean for you? Are you ready to ditch the myths and embrace a healthier, happier you? Lace up those sneakers and let’s get moving!
woman smiling and feeling energetic

woman smiling and feeling energetic | Image: Supplied

The only bad workout is the one that didn’t happen.

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