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H

Test

Heart Treatments

Learn more about the different ways to treat heart conditions, including procedures and devices.

Condition

Heart Valve Diseases

Heart valve diseases are problems affecting one or more of the four valves in the heart. 

Healthy Lifestyle

Heart-Healthy Living

Heart-healthy living can prevent and treat heart disease. It includes choosing healthy foods, getting more physical activity, aiming for a healthy weight, managing stress, quitting smoking, and getting enough good-quality sleep.

Condition

Hemolytic Anemia

Hemolytic anemia is a condition in which red blood cells are destroyed faster than they can be replaced.

Condition

High Blood Pressure

High blood pressure is a common disease that develops when blood flows through the arteries at higher-than-normal pressures.

Condition

High Blood Triglycerides

Triglycerides are a type of fat found in the blood. High triglycerides can raise your risk of heart disease and stroke. 

Healthy Lifestyle

How Sleep Works

Sleep is a period of rest that alternates with wakefulness, and it affects many of your body’s systems. Not getting enough sleep raises your risk of many serious health problems.

Condition

How the Heart Works

The heart is an organ about the size of a fist that pumps blood through your body. Your blood carries the oxygen and nutrients that your organs need to work properly.

Resources

Clinical Trials

The NHLBI leads and supports many clinical trials to help find new ways to prevent, detect, and treat heart, lung, blood, and sleep disorders

Fact Sheets and Handouts

The NHLBI develops materials for patients and health professionals on many heart, lung, blood, and sleep conditions. Information from the NHLBI is based on the latest scientific findings.