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H

Healthy Lifestyle

How the Lungs Work

Your lungs are the pair of spongy, pinkish-gray organs in your chest. They help get oxygen into your blood and carbon dioxide, a waste gas, out of your blood. 

Condition

Hypersensitivity Pneumonitis

Hypersensitivity pneumonitis is a rare immune system disorder that affects the lungs and makes it hard to breathe.

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Condition

Immune Thrombocytopenia (ITP)

Immune thrombocytopenia (ITP) is a platelet disorder that occurs when the number of platelets in your blood is too low. This can prevent your blood from clotting after an injury or surgery, making it hard to stop bleeding.

Condition

Insomnia

Insomnia is a common sleep disorder that causes you to have trouble falling asleep, staying asleep, or getting good quality sleep.

Condition

Interstitial Lung Diseases

Interstitial lung diseases (ILDs) are a group of more than 200 different disorders that cause scarring in the lungs and make it hard to breathe.

Condition

Iron-Deficiency Anemia

Iron-deficiency anemia is a condition in which the body can't make enough healthy red blood cells because it doesn't have enough iron. It is the most common type of anemia.

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Condition

LAM

LAM, or lymphangioleiomyomatosis, is a rare lung disease in which abnormal cells begin to grow out of control in the lungs. Over time, these cells can destroy healthy lung tissue.

Condition

Long QT Syndrome

Long QT syndrome is a problem with the electrical system that controls your heartbeat. It can cause sudden, fast heart rhythms.

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.