Cardiovascular exercise—often simply called “cardio”—isn’t just about burning calories or shedding a few pounds. It’s about building a stronger heart, a sharper mind, and a more energized version of yourself. Whether you’re a fitness beginner, a weekend warrior, or a lifelong athlete, cardio plays a vital role in your overall health and well-being.
Let’s break down why cardio is essential, how to tailor it to your lifestyle, and what machines and strategies may work best for you—at every stage of life.
What Exactly Is Cardio?
Cardio is any activity that gets your heart rate up and keeps it up for a period of time. It could be running, brisk walking, cycling, swimming, dancing, hiking, or using a machine like a treadmill or elliptical. The goal is to engage your cardiovascular system: heart, lungs, and blood vessels.
The Benefits of Cardio
Some of the benefits cardio gives are:
- Heart Health: Strengthens your heart and reduces resting heart rate.
- Improved Circulation: Boosts oxygen flow throughout your body.
- Weight Management: Burns calories and promotes fat loss.
- Mental Health: Releases endorphins that ease stress and elevate mood.
- Energy Boost: Increases stamina and combats fatigue.
- Sleep Support: Helps regulate and improve sleep quality.
- Brain Health: Enhances memory, focus, and mental clarity.
Even 10 minutes a day can make a difference. But if you can hit 30 to 45 minutes consistently, your body will thank you in more ways than one.
Make It Personal:
Listening to Your Body Matters
There’s no single cardio plan that works for everyone. Why? Because your body is constantly changing. One day, you’re feeling energized and motivated. The next, you may be dealing with stress, lack of sleep, or physical fatigue.
This is why personalization is so important.
Before every workout, ask yourself:
- How did I sleep last night?
- Am I mentally focused or distracted?
- Did I eat well today?
- Am I sore, energized, or somewhere in between?
Your body gives you clues—listen to them.
Don’t expect every session to be perfect. Just give your best based on how you feel that day. The act of showing up is a victory in itself.

My Cardio Routine:
What Works for Me
Everyone’s fitness journey is unique. Here’s what my cardio routine looks like, and how I personalize it based on how I feel:
The Cybex Arc Trainer
This machine is a powerhouse for full-body cardio and strength. I set it to:
- The highest incline
- The maximum resistance
- The heaviest workload the machine allows
I do this because I want the biggest elevation in each step with serious resistance. It pushes my legs, glutes, and core—and I feel the results.
The Recumbent Bike (True Fitness)
The adjustable seat on this machine lets you lean back like you’re riding a beach cruiser. I tilt it back halfway to shift more of the workload to my glutes.
- I start with a light warm-up
- Then crank the resistance up to a challenging level
- I push through for at least 20 more minutes, often finishing at 30 minutes total
The Upright Bike
Here’s my usual plan:
- Warm up for about 3 minutes
- Dial the resistance up to a level that challenges me (usually around level 20)
- Push myself for another 20 minutes or so
Again, this changes daily. The key is finding the maximum effort that still allows me to maintain good form without burning out too soon.
Important: This is what works for me. It might not be right for you. Your workout should be as unique as your fingerprint. Listen to your body and make the right call for you—every time.
Cardio Through the Ages:
What to Focus on by Decade
Here’s a breakdown of how to approach cardio at different stages of life:
In Your 20s
- Build endurance and experiment with different styles (HIIT, steady state, classes, machines).
- Establish a strong fitness habit early.
- Your recovery time is fast—use it to your advantage.
In Your 30s
- Stay consistent despite a busy schedule.
- Add in more joint-friendly options as needed.
- Balance high-impact workouts with recovery strategies.
In Your 40s
- Prioritize cardiovascular health and stress management.
- Choose low-impact machines like recumbent bikes or ellipticals to reduce strain.
- Stretch and recover more often—flexibility begins to decline.
In Your 50s and Beyond
- Focus on longevity and mobility.
- Cardio improves cognitive health, balance, and mood.
- Walking, cycling, and water aerobics are fantastic choices.
- Keep moving—movement is medicine.
Choosing the Right Cardio Machine for You
Not sure which machine fits your style? Here’s a quick guide:
Treadmill: Best for runners, walkers, and those looking to burn calories. It has a high impact level.
Elliptical: Ideal for full-body, low-impact cardio workouts. It has a low impact level.
Arc Trainer: Great for combining strength and endurance in one session. It has a medium-high impact level.
Recumbent Bike: Suitable for beginners, seniors, and people with joint concerns. It has a low impact level.
Upright Bike: Best for cyclists and those training glutes and quads. It has a medium impact level.
Choose what you enjoy and what feels right on your body. That’s what matters most.
Hydration:
The Underrated Game-Changer
Hydration isn’t just about drinking water. It’s about figuring out:
- How much your body needs
- When to drink (before, during, or after a workout)
- What to drink (plain water vs. electrolytes)
Personally, I take small sips throughout my workout. If I drink too much too quickly, I cramp or lose energy. Other people may prefer more frequent hydration. You have to experiment and find your rhythm.
There is no perfect formula—just your body’s feedback. You are your own science project.
Stretching:
Don’t Skip It
I stretch after every cardio session while my body is still warm. That’s when I can:
- Push gently into deeper flexibility
- Prevent tightness and injury
- Improve my posture and recovery
But again—flexibility is like energy—it changes daily. Some days you’ll feel open, other days stiff. Accept it, work with it, and be consistent.

When Should You Do Cardio?
The best time for cardio? Whenever you can fit it in.
We’d all love to have a set workout hour each day, but life rarely works like that. Instead of stressing over timing, just make it happen when your schedule allows. Morning, midday, evening—just do it.
If all you have is 10 minutes, then own those 10 minutes. Some cardio is always better than none.