Global web icon
nih.gov
https://www.nhlbi.nih.gov/health/heart/blood-flow
How the Heart Works - How Blood Flows through the Heart | NHLBI, NIH
Oxygen-poor blood from the body enters your heart through two large veins called the superior and inferior vena cava. The blood enters the heart's right atrium and is pumped to your right ventricle, which in turn pumps the blood to your lungs.
Global web icon
nih.gov
https://www.nhlbi.nih.gov/health/heart/heart-beats
How the Heart Works - How the Heart Beats | NHLBI, NIH
Your heartbeat is the contraction of your heart to pump blood to your lungs and the rest of your body. Your heart's electrical system determines how fast your heart beats.
Global web icon
nih.gov
https://www.nhlbi.nih.gov/health/coronary-heart-di…
What Is Coronary Heart Disease? - NHLBI, NIH
Coronary heart disease is a type of heart disease that occurs when the arteries of the heart cannot deliver enough oxygen -rich blood to the heart muscle due to narrowing from the buildup of fatty deposits called plaque . It is also sometimes called coronary artery disease or ischemic heart disease.
Global web icon
nih.gov
https://www.nhlbi.nih.gov/health/coronary-heart-di…
Coronary Heart Disease Risk Factors - NHLBI, NIH
Your risk of coronary heart disease increases based on the number of risk factors you have and how serious they are. Some risk factors — such as high blood pressure and unhealthy cholesterol levels can be adjusted through heart-healthy lifestyle changes. Other risk factors, such as your age, family history, and race and ethnicity, cannot be changed.
Global web icon
mayoclinic.org
https://www.mayoclinic.org/diseases-conditions/car…
Cardiomyopathy - Symptoms and causes - Mayo Clinic
Overview Cardiomyopathy (kahr-dee-o-my-OP-uh-thee) is a disease of the heart muscle. It causes the heart to have a harder time pumping blood to the rest of the body, which can lead to symptoms of heart failure. Cardiomyopathy also can lead to some other serious heart conditions. There are various types of cardiomyopathy. The main types include dilated, hypertrophic and restrictive ...
Global web icon
nih.gov
https://www.nhlbi.nih.gov/news/2024/omega-3s-heart…
Omega-3s for heart health? Exploring potential benefits and risks
NHLBI feature article explores the potential benefits and risks of omega-3 supplements, including fish oil, for heart health.
Global web icon
mayoclinic.org
https://www.mayoclinic.org/diseases-conditions/hea…
Heart attack - Symptoms & causes - Mayo Clinic
A heart attack occurs when an artery that sends blood and oxygen to the heart is blocked. Fatty, cholesterol-containing deposits build up over time, forming plaques in the heart's arteries. If a plaque ruptures, a blood clot can form. The clot can block arteries, causing a heart attack. During a heart attack, a lack of blood flow causes the tissue in the heart muscle to die.
Global web icon
nih.gov
https://www.nhlbi.nih.gov/news/2025/spotlight-upfs…
Spotlight on UPFs: NIH explores link between ultra ... - NHLBI, NIH
In addition to heart disease, studies have linked UPFs to weight gain, hypertension, type 2 diabetes, chronic obstructive pulmonary disease, cancer, and other problems. Studies show that UPFs are also linked to health disparities, as populations with low socioeconomic status tend to eat higher amounts of these foods.
Global web icon
nih.gov
https://www.nhlbi.nih.gov/health-topics/education-…
The Heart Truth® | NHLBI, NIH
The Heart Truth® Heart disease is the leading cause of death in the United States. But you can do a lot to protect your heart.
Global web icon
nih.gov
https://www.nhlbi.nih.gov/heart-truth/eat-a-heart-…
Take Action Toward Better Heart Health: | NHLBI, NIH
Take Action Toward Better Heart Health: Eat a Heart-Healthy Diet A healthy diet that is low in sodium and saturated fat is key to heart disease prevention. Try the highly rated Dietary Approaches to Stop Hypertension (DASH) eating plan. It recommends: Eating vegetables, fruits, and whole grains