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Can a Fitness Tracker Help Improve Your Heart Health?

July 30, 2021 - Katie McCallum

With heart disease being the leading cause of death for women, men and individuals of most racial and ethnic groups, taking steps to promote a healthy heart is important for everyone.

But, when it comes to protecting your heart health, you might be looking for a bit of help — possibly even to that fitness tracker wrapped around your wrist.

Let's get one huge disclaimer out of the way right off the bat: A fitness tracker isn't a medical device, and there's no evidence that wearing one reduces a person's risk of developing heart disease.

That being said, we all know that today's fitness trackers come with a slew of features aimed at helping us build and maintain a healthy lifestyle. Some of these features may help promote heart-healthy behaviors, such as:

  • Staying active
  • Getting enough sleep
  • Managing stress

On the flip side, it's important to recognize that there are other heart-healthy behaviors a fitness tracker can't help much with yet — namely adopting and maintaining a heart-healthy diet.

How a fitness tracker can be used to promote good heart health

Here are three ways a fitness tracker may help you get and stay heart-healthy, as well as two fitness tracker features you should probably avoid taking to heart.

1. Tracking your activity may encourage you to be more active

Not only is physical activity itself good for your heart, it can also help you avoid other common health issues that are risk factors for heart disease, including:

Activity can also help reduce stress and poor sleep, two everyday issues that can contribute to the heart disease risk factors above.

But, how do you know if you're being active enough? That's where a fitness tracker may offer some help. If there's one thing fitness trackers are known for, it's how they can help you understand your activity level throughout the day and over time.

Fortunately, gone are the days of these trackers only rewarding you once you've hit 10,000 steps (Did we really ever need that many steps anyways?)

Now, not only do fitness trackers show you a panel of measurements that can help you understand how active you are — number of steps you've taken, miles you've logged, stairs you've climbed, hours of the day you've done something other than sit — but most also allow you to set an activity goal that's realistic for you. Many even alert you if it seems like you're not on track to hit your daily activity goal.

And while it's still up to you to actually use your fitness tracker to improve your health, these measurements, personalized goals and reminders may help you take a step toward getting more active — which, in turn, can help you lose excess weight, lower your cholesterol, manage high blood pressure, reduce stress and poor sleep, and lower your risk of diabetes (aka, improve your heart health).

Just starting out? Know that some activity is better than none. Start by using your fitness tracker to monitor your activity and, as time progresses, try to keep moving more and sitting less. Ultimately, it's recommended that, per week, adults get 150 minutes of moderate intensity aerobic exercise and perform muscle-strengthening activities two or more days.

2. Monitoring your sleep can help you understand if you're getting enough of it

Poor sleep isn't a direct cause of heart disease, but it can contribute to the development of several heart disease risk factors, namely high blood pressure, obesity and diabetes.

How do you know if you're getting enough sleep? On average, adults should aim to get seven to eight hours of sleep every night — and, if your fitness tracker also monitors your sleep, it can help you understand how consistent you are at meeting this goal.

However, beware: A fitness tracker isn't an accurate way to determine the actual quality of your sleep and whether it's poor.

What these trackers are fairly reliable at measuring is whether you're getting enough hours of sleep each night — which is one of the most common contributors to overall poor sleep.

Start by wearing your tracker while you sleep and regularly taking a look at how many hours of sleep you're getting per night. If it's consistently less than seven hours, it's time to assess your sleep habits and correct them as needed — for the sake of your heart health.

3. Breathing reminders and meeting exercise goals can help you reduce stress

Like poor sleep, stress can be an indirect risk factor for heart disease. And while stress sometimes comes with physical symptoms, this isn't always the case — making it hard to determine when you're in need of a mental recharge.

Fortunately, things you might already be doing here and there, such as relaxation techniques and/or exercise, can help reduce stress — and a fitness tracker may encourage you to more consistently make time for these healthy, stress-reducing behaviors.

For instance, some popular brands offer you the choice to be reminded about and guided through short breathing exercises a few times throughout the day. Because deep-breathing exercises are one of many techniques that can help promote relaxation, consistently engaging in them can be a way to help reduce your overall stress. These breathing exercises are also a great reminder to step away from your busy workday and take a moment for yourself.

And while wearing a fitness tracker doesn't automatically mean you're going to exercise, it can be a powerful way to hold yourself accountable to getting a workout in — reducing stress and improving your heart health.

User beware: Don't place too much emphasis on calorie-burning metrics

Your resting heart rate can help provide clues about your overall heart health. A heart rate too high is called tachycardia, which places you at an increased risk of heart disease. A heart rate too low is called bradycardia, which can result in reduced oxygen flow to vital organs.

Most fitness trackers offer insights into your heart rate, but just know that these devices shouldn't be relied upon to screen for, diagnose and/or manage an irregular heart rate. Talk to your doctor if you notice irregular heart-rate patterns on your fitness tracker.

Additionally, many fitness trackers attempt to help you understand how many calories you burn throughout the day — particularly during exercise. Just know that these measurements aren't accurate, especially when calculated during moderate-to-strenuous exercise.

Avoid relying on your fitness tracker's calorie counts to determine how many calories you can take in per day. Instead, consult with your doctor or a licensed dietitian about your weight-loss plan.

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