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Home Knowledge Center Wellness Library Heart and Circulation

Heart and Circulation

Learn about your heart and blood circulation

It's not always easy to tell if you're having problems with blood vessels in your heart and your body. You can't feel plaque building up in your arteries. That's a scary thought for anyone who is concerned about high blood pressure or high cholesterol. Plaque buildup can have long-term effects on your heart and blood flow. And it doesn't just affect your heart. Plaque buildup can happen in your leg arteries too. Our topics can help you see what tests, lifestyle changes, and treatments are right for you.

To learn more, explore these topics:

  • High Cholesterol
  • High Blood Pressure
  • Cholesterol and Triglycerides Tests
  • Ischemia
  • Peripheral Arterial Disease of the Legs
  • Statins: Should I Take Them?
  • High Blood Pressure: Should I Take Medicine?
Health Topics
  • Abdominal Aortic Aneurysm Screening
  • Abdominal Aortic Aneurysm Surgery
  • Acute Coronary Syndrome
  • After a Stroke: Helping Your Family Adjust
  • Alan's Story: Coping With Change After a Heart Attack
  • Alcohol Increases the Risk of Cold Injury
  • Alcoholic Cardiomyopathy
  • American Heart Association Healthy Diet Guidelines
  • Angina
  • Angioplasty for Heart Attack and Unstable Angina
  • Angiotensin II Receptor Blockers (ARBs)
  • Angiotensin-Converting Enzyme (ACE) Inhibitors
  • Anticoagulants
  • Antiplatelets
  • Aortic Aneurysm
  • Aortic Dissection
  • Aortic Valve Regurgitation
  • Aortic Valve Regurgitation: Deciding About Surgery
  • Aortic Valve Replacement Surgery
  • Aortic Valve Stenosis
  • Aortobifemoral Bypass Surgery
  • Arrhythmias and Sexual Activity
  • Arturo's Story: Getting Support for Making a Change
  • Aspirin to Prevent Heart Attack and Stroke
  • Atherosclerosis
  • Atrial Fibrillation
  • Atrial Fibrillation and Daily Life
  • Automated Ambulatory Blood Pressure Monitoring
  • Bed Rest in Pregnancy
  • Beta-Blockers
  • Biventricular Pacemaker
  • Blood Clots in the Leg Veins
  • Blood Pressure Numbers: When to Get Help
  • Blood Pressure Screening
  • Blood Thinners: Signs of Abnormal Bleeding
  • Bradycardia (Slow Heart Rate)
  • Cardiac Arrest
  • Cardiac Cachexia
  • Cardiac Device Monitoring
  • Cardiac Output
  • Cardiac Rehabilitation
  • Cardiac Rehabilitation Team
  • Cardiac Rehabilitation: Emotional Health Benefits
  • Cardiac Rehabilitation: Exercise
  • Cardiac Rehabilitation: Home Program
  • Cardiac Rehabilitation: Hospital Program
  • Cardiac Rehabilitation: Lifestyle Changes
  • Cardiac Rehabilitation: Maintenance Program
  • Cardiac Rehabilitation: Medicine and Exercise
  • Cardiac Rehabilitation: Monitoring Your Body's Response to Exercise
  • Cardiac Rehabilitation: Outpatient Program
  • Cardiac Rehabilitation: Weight and Resistance Training
  • Cardiomyopathy
  • Carotid Artery Disease
  • Carotid Artery Stenting
  • Carotid Endarterectomy
  • Catheter Ablation for a Fast Heart Rate
  • Catheter Ablation for Atrial Fibrillation
  • Central Vascular Access Device (CVAD)
  • Central Vascular Access Device (CVAD): Changing the Dressing
  • Central Vascular Access Device (CVAD): Flushing
  • Change in Heartbeat
  • Chest Problems
  • Chilblains (Perniosis)
  • Cholesterol and Triglycerides: Eating Fish and Fish Oil
  • Cholesterol in Children and Teens
  • Cholesterol Treatment Guidelines
  • Classification of Heart Failure
  • Clopidogrel and Genetic Testing
  • Cold Hands: Home Treatment
  • Compression Stockings for Varicose Veins
  • Congenital Heart Defect Types
  • Congenital Heart Defects in Adults
  • Congenital Heart Defects in Children
  • Congenital Heart Defects: Caring for Your Child
  • Conserving Energy When You Have COPD or Other Chronic Conditions
  • Coronary Angioplasty
  • Coronary Arteries and Heart Function
  • Coronary Artery Bypass Graft Surgery: How It Is Done
  • Coronary Artery Bypass Graft Surgery: How to Prepare
  • Coronary Artery Bypass Graft Surgery: Recovering in the Hospital
  • Coronary Artery Bypass Graft Surgery: Self-Care for Recovery
  • Coronary Artery Bypass Graft Surgery: The Recovery Process
  • Coronary Artery Bypass Graft Surgery: What to Expect After You Go Home
  • Coronary Artery Bypass Surgery
  • Coronary Artery Bypass Surgery: Day One of Recovery
  • Coronary Artery Bypass Surgery: Minimally Invasive Methods
  • Coronary Artery Bypass Surgery: When You Arrive at the Hospital
  • Coronary Artery Bypass Surgery: Your Medical Team
  • Coronary Artery Disease
  • Coronary Artery Disease and Alcohol
  • Coronary Artery Disease: Family History
  • Coronary Artery Disease: Helping a Loved One
  • Coronary Artery Disease: Prevention Myths
  • Coronary Artery Disease: Roles of Different Doctors
  • CPR Basics
  • DASH Diet Sample Menu
  • Deep Vein Thrombosis
  • Depression and Anxiety When You Have Coronary Artery Disease
  • Diabetes: Amputation for Foot Problems
  • Dilated Cardiomyopathy
  • Diuretics and Potassium Supplements
  • Driving a Car After a Stroke
  • Drug-Eluting Stents
  • Eclampsia (Seizures) and Preeclampsia
  • Electrical Cardioversion for a Fast Heart Rate
  • Electrical Cardioversion for Atrial Fibrillation
  • Electrical System of the Heart
  • Endocarditis
  • Endovascular Repair for Abdominal Aortic Aneurysm
  • Enjoying Life When You Have Heart Failure
  • Exercising to Prevent a Stroke
  • Fainting
  • Familial Lipid Disorders
  • Fast Heart Rate
  • Femoral-Tibial Bypass Surgery
  • Femoropopliteal Bypass Surgery
  • Giant Cell Arteritis
  • Heart Arrhythmias and Exercise
  • Heart Attack and Stroke in Women: Reducing Your Risk
  • Heart Attack and Stroke Risk Screening
  • Heart Attack and Unstable Angina
  • Heart Attack: How to Prevent Another One
  • Heart Block
  • Heart Failure
  • Heart Failure and Sexual Activity
  • Heart Failure Complications
  • Heart Failure Daily Action Plan
  • Heart Failure Stages
  • Heart Failure Symptoms
  • Heart Failure Types
  • Heart Failure With Preserved Ejection Fraction (Diastolic Heart Failure)
  • Heart Failure With Reduced Ejection Fraction (Systolic Heart Failure)
  • Heart Failure: Avoiding Colds and Flu
  • Heart Failure: Compensation by the Heart and Body
  • Heart Failure: Disease Management Programs
  • Heart Failure: Eating a Healthy Diet
  • Heart Failure: Less Common Symptoms
  • Heart Failure: Symptom Record
  • Heart Failure: Tips for Caregivers
  • Heart Failure: Tips for Easier Breathing
  • Heart Failure: Track Your Weight, Food, and Sodium
  • Heart Murmur
  • Heart Rhythm Problems and Driving
  • Heart Rhythm Problems: Diary of Symptoms
  • Heart Rhythm Problems: Symptoms
  • Heart Tests: When Do You Need Them?
  • Heart Transplant
  • Heart Valve Disease
  • Heart-Healthy Eating
  • Heart-Healthy Eating: Fish
  • Heart-Healthy Lifestyle
  • HELLP Syndrome
  • Helping a Loved One After Coronary Artery Bypass Graft Surgery
  • Hemorrhagic Stroke
  • High Blood Pressure
  • High Blood Pressure During Pregnancy
  • High Blood Pressure: Nutrition Tips
  • High Blood Pressure: Over-the-Counter Medicines to Avoid
  • High Cholesterol
  • High Cholesterol: How a Dietitian Can Help
  • High Triglycerides
  • High-Output Heart Failure
  • Home Blood Pressure Log
  • How the Heart Works
  • How to Find Sodium
  • Hypertensive Emergency
  • Hypertrophic Cardiomyopathy
  • Hypertrophic Cardiomyopathy Types
  • Hypertrophic Cardiomyopathy: Risk of Sudden Death
  • Hypothermia and Cold Temperature Exposure
  • Implantable Cardioverter-Defibrillator (ICD)
  • Interactive Tool: What Is Your Target Heart Rate?
  • Interactive Tools
  • Intermittent Claudication
  • Intra-Aortic Balloon Pump
  • Ischemia
  • Isolated Systolic High Blood Pressure
  • Izzy's Story: Living With the DASH Diet
  • Joan's Story: Coping With Depression and Anxiety From Heart Failure
  • Joe's Story: Changing My Lifestyle
  • Kawasaki Disease
  • Laser Treatment for Varicose Veins
  • Leadless Pacemaker
  • Left Ventricular Hypertrophy (LVH)
  • Leg Amputation
  • Leg Aneurysm
  • Leg Problems, Noninjury
  • Leriche's Syndrome
  • Linda's Story: Quitting Smoking Lowers My Risk
  • Lipid Panel
  • Living With More Than One Health Problem
  • Low Blood Pressure (Hypotension)
  • Lyme Disease
  • Manage Stress for Your Heart
  • Maze Procedure
  • Medicines That Can Cause Changes in Heart Rate or Rhythm
  • Medicines That Increase the Chance for a Heat-Related Illness
  • Medicines to Prevent Abnormal Heart Rhythm in Heart Failure
  • Mediterranean Diet
  • Metabolic Syndrome
  • Mitral Valve Prolapse
  • Mitral Valve Regurgitation
  • Mitral Valve Regurgitation: Repair or Replace the Valve?
  • Mitral Valve Repair Surgery
  • Mitral Valve Replacement Surgery
  • Mitral Valve Stenosis
  • Mitral Valve Stenosis: Repair or Replacement?
  • Modify Recipes for a Heart-Healthy Diet
  • Monitoring and Medicines for Heart Failure
  • Monitoring During Anesthesia
  • Multisystem Inflammatory Syndrome in Children (MIS-C)
  • Myxoma Tumors of the Heart
  • Organ Transplant
  • Oxygen Therapy
  • Pacemaker
  • People Who Need Antibiotics to Prevent Endocarditis
  • Pericarditis
  • Peripheral Arterial Angioplasty
  • Peripheral Arterial Disease and Exercise
  • Peripheral Arterial Disease of the Legs
  • Peripheral Arterial Disease: Pulse and Blood Pressure Measurement
  • Physical Activity Helps Prevent a Heart Attack and Stroke
  • Physical Therapy
  • Polymyalgia Rheumatica
  • Postoperative Problems
  • Post-Thrombotic Syndrome
  • Postural Orthostatic Tachycardia Syndrome (POTS)
  • Preeclampsia
  • Pregnancy: Varicose Veins
  • Premature Ventricular Contractions (PVCs)
  • Pressure Injuries
  • Pressure Injuries From Scuba Diving
  • Pressure Injuries: Prevention and Treatment
  • Pressure Injuries: Stages
  • Preventing Deep Vein Thrombosis From Travel
  • Pulmonary Embolism
  • Quick Tips: Taking Charge of Your Angina
  • Radiofrequency Ablation for Varicose Veins
  • Rating of Perceived Exertion (RPE)
  • Raynaud's Phenomenon
  • Renal Artery Stenosis
  • Restrictive Cardiomyopathy
  • Resuming Sexual Activity After a Heart Attack
  • Rheumatic Fever and the Heart
  • Right-Sided Heart Failure
  • Risk Factors for Coronary Artery Disease
  • Sally's Story: Avoiding Metabolic Syndrome
  • Sclerotherapy for Varicose Veins
  • Secondary High Blood Pressure
  • Self-Care After a Stroke
  • Sex and Your Heart
  • Shock
  • Sick Sinus Syndrome
  • Smoking and Coronary Artery Disease
  • Sodium Record
  • SPECT Image of the Heart
  • Statins
  • Stroke
  • Stroke Rehabilitation
  • Stroke: Behavior Changes
  • Stroke: Bladder and Bowel Problems
  • Stroke: Changes in Emotions
  • Stroke: Common Problems
  • Stroke: Dealing With Depression
  • Stroke: Getting Dressed
  • Stroke: How to Prevent Another One
  • Stroke: Memory Tips
  • Stroke: Perception Changes
  • Stroke: Preventing Injury in Affected Limbs
  • Stroke: Problems With Ignoring the Affected Side
  • Stroke: Speech and Language Problems
  • Stroke: Your Rehabilitation Team
  • Supraventricular Tachycardia
  • Temporal Artery Biopsy
  • Thrombolytics for Heart Attack and Stroke
  • Tony's Story: Taking Medicine for High Cholesterol
  • Transcatheter Aortic Valve Implantation (TAVI)
  • Transient Ischemic Attack (TIA)
  • Triggers of Sudden Heart Failure
  • Turning Off Your ICD
  • Types of Bradycardia
  • Tyrell's Story: Taking Pills for High Blood Pressure
  • Understanding Virtual Care (Telemedicine)
  • Using Nitroglycerin for Angina
  • Vagal Maneuvers for Supraventricular Tachycardia (SVT)
  • Valvuloplasty for Aortic Valve Stenosis
  • Valvuloplasty for Mitral Valve Stenosis
  • Varicose Veins
  • Varicose Veins Home Treatment
  • Varicose Veins: Phlebectomy or Stab Avulsion
  • Vein Ligation and Stripping
  • Venous Insufficiency
  • Venous Skin Ulcer
  • Venous Skin Ulcers: Home Treatment
  • Ventricular Assist Device (VAD) for Heart Failure
  • Ventricular Tachycardia
  • Warfarin and Vitamin K
  • Weight and Coronary Artery Disease
  • What to Do if Your Cardiac Device Is Recalled
  • When to Have a Cholesterol Test
  • Wolff-Parkinson-White Syndrome
Medical Tests
  • Allen Test
  • Ambulatory Electrocardiogram (EKG)
  • Angiogram
  • Angiogram of the Head and Neck
  • Angiogram of the Lung
  • Ankle-Brachial Index Test
  • Arterial Blood Gases (ABG) Test
  • Aspartate Aminotransferase (AST) Test
  • Brain Natriuretic Peptide (BNP) Test
  • Cardiac Blood Pool Scan
  • Cardiac Catheterization
  • Cardiac Catheterization in Children
  • Cardiac Enzyme Studies
  • Cardiac Perfusion Scan
  • Catecholamines in Blood Test
  • Catecholamines in Urine Test
  • Chest X-Ray
  • Cholesterol and Triglycerides Tests
  • Computed Tomography (CT) Angiogram
  • Computed Tomography (CT) Scan of the Body
  • Coronary Calcium Scan
  • Creatine Kinase Test
  • Doppler Ultrasound
  • Echocardiogram
  • Electrocardiogram (EKG)
  • Electrophysiology (EP) Study
  • Exercise Electrocardiogram (EKG)
  • High-Sensitivity C-Reactive Protein (hs-CRP) Test
  • Home Blood Pressure Test
  • Lyme Disease Test
  • Magnetic Resonance Angiogram (MRA)
  • Magnetic Resonance Imaging (MRI)
  • Myoglobin Test
  • Pericardiocentesis
  • Positron Emission Tomography (PET)
  • Pulse Measurement
  • Single Photon Emission Computed Tomography (SPECT)
  • Stress Echocardiogram
  • Tilt Table Test
  • Transesophageal Echocardiogram
  • Transthoracic Echocardiogram
  • Ventriculogram
Make a Wise Decision
  • Abdominal Aortic Aneurysm: Should I Get a Screening Test?
  • Advance Care Planning: Should I Receive CPR and Life Support?
  • Aspirin: Should I Take Daily Aspirin to Prevent a Heart Attack or Stroke?
  • Atrial Fibrillation: Should I Have Catheter Ablation?
  • Atrial Fibrillation: Should I Take an Anticoagulant to Prevent Stroke?
  • Atrial Fibrillation: Should I Try Electrical Cardioversion?
  • Atrial Fibrillation: Which Anticoagulant Should I Take to Prevent Stroke?
  • Coronary Artery Disease: Should I Have an Angiogram?
  • Coronary Artery Disease: Should I Have Angioplasty for Stable Angina?
  • Coronary Artery Disease: Should I Have Bypass Surgery?
  • Coronary Calcium Scan: Should I Have This Test?
  • Heart Failure: Should I Get a Pacemaker (Cardiac Resynchronization Therapy)?
  • Heart Failure: Should I Get an Implantable Cardioverter-Defibrillator (ICD)?
  • Heart Rate Problems: Should I Get a Pacemaker?
  • Heart Rhythm Problems: Should I Get an Implantable Cardioverter-Defibrillator (ICD)?
  • High Blood Pressure: Should I Take Medicine?
  • Peripheral Arterial Disease: Should I Have Surgery?
  • Statins: Should I Take Them to Prevent a Heart Attack or Stroke?
  • Stroke Prevention: Should I Have a Carotid Artery Procedure?
  • Supraventricular Tachycardia: Should I Have Catheter Ablation?
  • Varicose Veins: Should I Have a Surgical Procedure?
Take Action
  • Blood Thinners Other Than Warfarin: Taking Them Safely
  • Compression Stockings: How to Use Them
  • Coronary Artery Disease: Exercising for a Healthy Heart
  • Healthy Eating: Cutting Unhealthy Fats From Your Diet
  • Healthy Eating: Eating Less Sodium
  • Heart Failure: Activity and Exercise
  • Heart Failure: Avoiding Medicines That Make Symptoms Worse
  • Heart Failure: Avoiding Triggers for Sudden Heart Failure
  • Heart Failure: Checking Your Weight
  • Heart Failure: Taking Medicines Properly
  • Heart Failure: Watching Your Fluids
  • Heart Health: Walking for a Healthy Heart
  • High Blood Pressure: Checking Your Blood Pressure at Home
  • High Blood Pressure: Taking Medicines Properly
  • High Blood Pressure: Using the DASH Diet
  • High Cholesterol: Making Lifestyle Changes
  • ICD: Living Well With It
  • Low-Salt Diets: Eating Out
  • Oxygen Therapy: Using Oxygen at Home
  • Pacemaker: Living Well With It
  • Warfarin: Taking Your Medicine Safely

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