Myth: A normal heart rate is 60-100 beats per minute.
That's the old standard. Many doctors think it should be lower. About 50-70 beats per minute is ideal, says Suzanne Steinbaum, MD, director of women's heart health at Lenox Hill Hospital.
Recent studies suggest a heart rate higher than 76 beats per minute when you're resting may be linked to a higher risk of heart attack.
The better shape you're in, the slower your heart rate will be when you're not moving around. "It might be OK to have a resting heart rate of 80, but it doesn't mean you're healthy," Steinbaum says.
2. Myth: An erratic heart rate means I'm having a heart attack.
When your heart beats in an irregular pattern, you're having what's called palpitations. You may feel as if it skipped a beat or speeds up. Or it may seem like a brief flutter or a pounding in your chest.
"Most of the time these sensations are not life-threatening," says Apoor Patel, MD, a cardiologist at North Shore-LIJ Medical PC in Manhasset, N.Y.
Many things can cause palpitations, like:
- Alcohol
- Caffeine
- Exercise
- Stress
- Dehydration
- Medication
- Fever
- Thyroid disorders
- Smoking
- Dietary supplements like goldenseal, oleander, motherwort, or ephedra
"Having an irregular heartbeat doesn't mean you're having a heart attack," Steinbaum says. But if it's a new symptom, or if you have chest pains or problems breathing, call your doctor.
3. Myth: If my pulse is fast, it always means I'm stressed out.
Stress is just one thing that can raise your pulse. Your heart rate may also speed up when you exercise, get excited, or feel anxious or sad.
When you stand up, your pulse may go up for 15 to 20 seconds before it goes back to normal. Even the weather, like high temperatures or humidity, can raise it.
If you take thyroid medication, a fast pulse may be a sign you're taking too much. Talk to your doctor.
4. Myth: If my heart rate is normal, my blood pressure is fine.
Sometimes your heart rate and your blood pressure go hand in hand. For example, when you exercise, or get angry or scared, they both go up.
But they're not always linked. If your heart rate is normal, your blood pressure may not be. It could be too high or too low, and you may not realize it.
Recommended Related to Heart Disease
The New Heart Tests: Which Ones Should You Have?
Researchers are developing new ways to check your heart health. Two tests are available now; an interesting third is on the horizon.
Read the The New Heart Tests: Which Ones Should You Have? article > >
Even if your heart rate seems fine, get your blood pressure checked regularly.
5. Myth: If my heart rate is slow, it means I have a weak heart.
Not necessarily. A slow heart rate can be a sign that you're healthy and fit. An athlete's heart muscle is in better shape, so it doesn't have to work as hard to keep up a steady beat.
In general, Patel says, slow rates are only a problem if you also pass out, feel dizzy, are short of breath, or have chest pain. See your doctor if you have any of those symptoms.
View Article Sources

SOURCES:
Suzanne Steinbaum, MD, director, women's heart health, Lenox Hill Hospital, New York.
Apoor Patel, MD, cardiologist, North Shore-LIJ Medical PC, Manhasset, NY.
American Heart Association: "All About Heart Rate (Pulse)."
University of Michigan Health System: "Change in Heartbeat."
Reviewed on May 21, 2015
Continue reading below...
My Notes:

Top Picks
- Heart Disease: What Are the Medical Costs?
- Quiz: Test Your Cholesterol Smarts
- 10 Tips for Living With Atrial Fibrillation
- Number 1 Killer of Women
- How to Wreck Your Heart
- Heart Tests Your Doctor May Recommend
Further Reading:
- Slideshow: Tips for Living With Atrial Fibrillation
- Slideshow: A Visual Guide to Atrial Fibrillation
- Heart Rhythm Disorders Illustrated Guide
- How Well Are You Living With Atrial Fibrillation?
- Heart Arrhythmia Quiz
- Abnormal Heart Rhythms and Implantable Cardioverter Defibrillators (ICD)
- The Facts About Cardioversion
- See All Arrhythmia Topics
Arrhythmia Home

Heart Disease Guide
1
Overview & Facts
2
Symptoms & Types
3
Diagnosis & Tests
4
Treatment & Care
5
Living & Managing
6
Support & Resources
Related to Heart Disease
- Abnormal Heart Rhythms
- Angina
- Atrial Fibrillation
- Cholesterol Management
- Diabetes
- Heart Failure
- High Blood Pressure
- Metabolic Syndrome
- My Medicine
- Stroke
- More Related Topics
Today on WebMD

Understanding Heart Disease
A visual guide.

What Is AFib?
Symptoms and causes.

Keep Your Heart Ticking
10 things to never do.

5 Heart Rate Myths
Get the facts.

Article
Shocking Heart Deaths: Why Do They Happen?

Video
Alcohol and Your Heart

Article
After a Heart Attack

Slideshow
15 Simple Steps to Lower Cholesterol

SLIDESHOW
Inside a Heart Attack

SLIDESHOW
The Truth About Omega-3

SLIDESHOW
Salt Shockers: Avoid These High-Sodium Surprises

SLIDESHOW
See Simple Ways to Lower Blood Pressure
WebMD Special Sections
- Frequently Asked Questions about New Types of Blood Thinners
- Talking to Your Doctor About Your Cardiac Stress Test
- Quiz: Myths and Facts About Your Heart Health
- What Heart Disease Looks Like
Health Solutions From Our Sponsors
- Feeding a Growing World
- Supplement FAQs
- Care for Aortic Stenosis?
- Alzheimer's Worsening?
- Osteoporosis Treatment
More From WebMD:
Hemophilia Treatment|RA Basics|Psoriasis|MS Assessment|Hemophilia Questions|Preteen Vaccines|ADHD in Children|Diabetes Diet|Hodgkin's Lymphoma|Multiple Myeloma |Breast Cancer|Toenail Fungus|Incontinence|COPDFind us on:
URAC: Accredited Health Web Site

About WebMDAdvertise With UsTerms of UsePrivacy PolicyAccessibilitySponsor PolicySite MapCareersContact Us
Medscape ReferenceeMedicineHealthRxListMedscapeMedicineNetBootsWebMDWebMD Corporate
WebMD Health ServicesFirst AidWebMD MagazineWebMD Health RecordWebMD MobileNewsletters
DictionaryPhysician Directory
©2005-2015 WebMD, LLC. All rights reserved.
WebMD does not provide medical advice, diagnosis or treatment. See additional information.