Heart Health: The Complete Plain-Language Guide

1 day ago

8 min read

Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: September 2026

Quick Answer

Heart health means keeping your heart and blood vessels working well so you lower your risk of heart attack, stroke, and heart failure. Heart disease is the leading cause of death for both men and women. The American Heart Association's "Life's Essential 8" sums up what protects your heart: eat well, move more, avoid nicotine, sleep 7–9 hours, and keep your weight, cholesterol, blood sugar, and blood pressure in a healthy range.

Why it matters: in the U.S., one person dies every 34 seconds from cardiovascular disease
Most common type: coronary heart disease (narrowed heart arteries)
Healthy blood pressure: less than 120/80 mm Hg
Activity goal: 150 minutes of moderate or 75 minutes of vigorous activity a week
Emergency: chest pain, shortness of breath, or pain spreading to the arm, jaw, or back means call your local emergency number

How Common Is Heart Disease?

Heart disease is the leading cause of death for men, women, and people of most racial and ethnic groups in the United States. According to the CDC:

919,032 people died from cardiovascular disease in 2023, about 1 in every 3 deaths.
Someone has a heart attack every 40 seconds.
Coronary heart disease is the most common type of heart disease.

The good news is that many of the risk factors behind these numbers can be changed.

Worldwide, the World Health Organization estimates that 19.8 million people died from cardiovascular disease in 2022, about 32% of all deaths. 85% of these deaths were caused by heart attacks and strokes, and more than three quarters happened in low- and middle-income countries.

How Does Your Heart Work?

Your heart is a muscle about the size of a fist. It pumps blood through your body, bringing oxygen and nutrients to every organ. The coronary arteries supply the heart muscle itself with blood. Four valves keep blood flowing in the right direction, and an electrical system keeps the heartbeat steady.

Heart problems usually happen when one of these parts is affected: the arteries (blockages), the muscle (weakness), the valves (leaks or narrowing), or the electrical system (rhythm problems).

What Are Life's Essential 8?

The American Heart Association uses eight measures to describe good heart health:

Eat better. Build your meals around whole foods, lots of fruits and vegetables, lean protein, nuts, and seeds.
Be more active. Adults need 2½ hours of moderate or 75 minutes of vigorous activity each week. Children need 60 minutes every day.
Quit tobacco. Nicotine products are the leading cause of preventable death in the United States.
Get healthy sleep. Most adults need 7–9 hours a night.
Manage weight. A body mass index (BMI) under 25 is the target, but avoid being underweight (BMI under 18.5).
Control cholesterol. High non-HDL ("bad") cholesterol can lead to heart disease.
Manage blood sugar. High blood sugar can damage your heart, kidneys, eyes, and nerves.
Manage blood pressure. Aim for less than 120/80 mm Hg. See Normal Blood Pressure by Age.

You don't need to fix everything at once. Improving even one of these measures helps.

Know Your Heart Numbers

A few simple numbers tell you and your doctor a lot about your heart. Ask for them at your next check-up and write them down.

Blood pressure: below 120/80 mm Hg is normal. A top number of 120 to 129 is elevated, and 130/80 or higher is high blood pressure. See Normal Blood Pressure by Age.
Resting heart rate: 60 to 100 beats per minute is normal for adults sitting or lying down calmly.
Cholesterol: your doctor looks at LDL ("bad") and non-HDL cholesterol. Most adults should be tested at least every 4 to 6 years, and more often with high cholesterol or a family history.
Blood sugar: a fasting glucose or HbA1c test shows whether you have diabetes or prediabetes, which both raise heart risk.
Weight: the American Heart Association considers a body mass index (BMI) under 25 optimal.

How to Check Your Blood Pressure at Home

Avoid coffee, exercise, and smoking for 30 minutes before measuring.
Sit quietly for 5 minutes with your back supported and your feet flat on the floor.
Rest your arm on a table at heart level, with the cuff on bare skin.
Stay still and don't talk. Take two readings one minute apart and write both down.
If a reading is higher than 180/120 mm Hg, wait one minute and check again. If it stays that high and you have chest pain, shortness of breath, weakness, numbness, vision changes, or trouble speaking, call emergency services right away.

Heart-Healthy Foods: What to Eat More and Less Of

No single food protects your heart. Your overall eating pattern matters most. The Mediterranean-style diet, built on vegetables, legumes, whole grains, fish, and olive oil, is one of the best-studied patterns for heart health.

Eat More Of

Vegetables and fruits, fresh or frozen
Whole grains such as oats, brown rice, and whole-wheat bread. Read how many servings of whole grains you need.
Legumes such as beans, lentils, chickpeas, and fava beans
Fish, especially oily fish like salmon and sardines
Unsalted nuts and seeds, and olive or canola oil instead of butter or ghee

Eat Less Of

Salt, including hidden salt in bread, cheese, pickles, sauces, and processed meats
Processed and fatty red meats
Sugary drinks, sweets, and desserts
Fried foods and foods high in saturated or trans fats
Highly processed packaged snacks and ready meals

What Are the Warning Signs of a Heart Problem?

Heart Attack Warning Signs (Emergency)

Chest pain, pressure, or discomfort that lasts more than a few minutes, or goes away and comes back
Pain or discomfort in one or both arms, the back, neck, jaw, or stomach
Shortness of breath
A cold sweat, nausea, lightheadedness, or unusual tiredness

Call your local emergency number right away, even if you're not sure. Women more often have symptoms beyond chest pain. Read Heart Attack Symptoms in Women vs Men and Left-Side Chest Pain: When It's an Emergency.

Signs to Discuss With Your Doctor

Chest discomfort during exercise that goes away with rest
Getting out of breath more easily than before
Swollen ankles or legs
A racing, pounding, or irregular heartbeat. See Heart Palpitations.
Dizziness or fainting

Heart Disease Risk Factors You Can and Can't Change

Some risk factors are in your control and some are not. Knowing both helps you and your doctor judge your overall risk.

Risk Factors You Can Change

Smoking and nicotine, including vaping and shisha (waterpipe)
High blood pressure, high cholesterol, and high blood sugar
An unhealthy diet with too much salt, sugar, and unhealthy fats
Physical inactivity and excess weight
Harmful alcohol use
Poor sleep and long-term stress
Exposure to air pollution

Risk Factors You Can't Change

Age: risk rises as you get older
Family history of heart disease at a young age
Sex: men tend to develop heart disease earlier, and women's risk rises after menopause. See Heart Attack Symptoms in Women vs Men.

Having a risk factor you can't change makes the ones you can change even more important.

Common Heart Conditions: Guides on Rinnit

Blocked or Narrowed Arteries

Heart Muscle and Pumping Problems

Heart Rhythm Problems

Valves and the Heart's Lining

Blood Pressure

Related Blood Vessel Conditions

Which Heart Health Checks Should You Get?

Blood pressure: everyone age 3 and older should have it checked by a healthcare provider at least once a year.
Cholesterol and blood sugar: ask your doctor how often you need these blood tests based on your age and risk.
Weight and waist size: checked at routine visits.
Your personal risk: ask your doctor to estimate your risk of heart disease and what would lower it most.

Women should also tell their doctor about pregnancy complications such as high blood pressure or diabetes during pregnancy, because these raise long-term heart risk.

Your 7-Day Heart Health Starter Plan

Big changes are hard to keep. Try one small step each day for a week, then keep the ones that fit your life.

Day 1: Check your blood pressure at a pharmacy, clinic, or at home, and write it down.
Day 2: Take a brisk 20-minute walk.
Day 3: Swap one processed snack for a piece of fruit or a handful of unsalted nuts.
Day 4: Read food labels and choose lower-salt bread, cheese, or sauces.
Day 5: Go to bed 30 minutes earlier to move toward 7 to 9 hours of sleep.
Day 6: Add a vegetable or legume dish to lunch and dinner.
Day 7: Book a check-up to ask about your cholesterol and blood sugar. If you smoke, ask about help to quit.

Heart Health News on Rinnit

Our Health News section covers new heart research in plain language, for example:

For Clinicians and Creators

Making heart health content for your patients or social media? The Animated Medical Prevention Icons for Health Awareness pack helps you turn prevention tips into short, clear videos.

Questions to Bring to Your Doctor

What is my risk of heart disease over the next 10 years?
Are my blood pressure, cholesterol, and blood sugar in a healthy range?
Which one change would help my heart the most?
How often should I have heart health checks?
Which symptoms should make me call emergency services?

For a full list, see Questions to Ask Your Doctor: A Printable Checklist.

Frequently Asked Questions

What is the best thing I can do for my heart?

If you smoke or use nicotine, quitting is one of the most powerful steps. Beyond that, regular activity, a diet rich in whole foods, good sleep, and keeping blood pressure below 120/80 all protect your heart.

How much exercise do I need for a healthy heart?

Adults need at least 150 minutes of moderate activity, such as brisk walking, or 75 minutes of vigorous activity each week. Children need 60 minutes every day.

Can young people get heart disease?

Yes. Risk rises with age, but high blood pressure, diabetes, smoking, obesity, and family history can affect the heart at any age.

Is heart disease the same for women and men?

It is the leading cause of death for both. Women more often have symptoms other than chest pain and some risk factors, such as diabetes and smoking, affect women more.

What is a normal resting heart rate?

For most adults, a normal resting heart rate is 60 to 100 beats per minute when sitting or lying down calmly. Very fit people can be lower. If your heart often races, pounds, or feels irregular at rest, talk to your doctor.

What is a healthy blood pressure?

Below 120/80 mm Hg is normal. A top number of 120 to 129 with a bottom number below 80 is elevated, and 130/80 or higher is high blood pressure. One high reading doesn't mean you have hypertension; your doctor confirms it with repeat readings.

Is walking good for your heart?

Yes. Brisk walking counts as moderate activity. Aim for at least 150 minutes a week, for example 30 minutes on 5 days. Shorter walks still add up and are much better than none.

Can heart damage be reversed?

It depends on the cause. Heart muscle scarred by a heart attack does not grow back, but treatment and healthy habits can improve how well the heart works, ease symptoms, and lower the risk of another event. Ask your doctor what is possible in your case.

Does stress affect heart health?

Long-term stress can raise blood pressure and make it harder to sleep well, eat well, stay active, and avoid smoking. Regular activity, good sleep, and talking to someone you trust can help. If stress feels overwhelming, speak to your doctor.

References

This article is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you have chest pain, shortness of breath, or other heart attack warning signs, call your local emergency number right away.