Acute bronchitis refers to inflammation of the central airways that usually clears up within four to eight weeks. Viral infections are the most common cause. This video explores other possible causes, available treatments, and preventive steps you can take.

Anaphylaxis is a potentially life-threatening allergic reaction. Common causes of anaphylaxis are allergies to penicillin, bee stings, aspirin, eggs, peanuts, and nuts. In this video, you'll find out other possible causes, what preventive steps you can take to avoid anaphylaxis, and why emergency treatment is needed.

Asbestos is a natural fibrous material known for its flame resistance and insulation properties. Breathing in these fibers, however, can damage the lungs. Workers who come in contact with asbestos are at highest risk for lung problems. This video explains why asbestos is such a health danger and what steps you can take to protect yourself.

Asthma is a chronic respiratory condition that causes inflammation of the airways. This inflammation, which can be triggered by a variety of substances, makes the airways much narrower and interferes with breathing. This video discusses who is at risk for this condition and how it can be managed.

Pneumonia is a term that refers to inflammation of the lung. Bacterial pneumonia means that the inflammation is caused by a bacterial infection. This video takes a look at the possible causes and recommended treatments.

Obstructive sleep apnea and snoring occur when tissues of the upper airway, tongue, and throat relax during sleep. This relaxation can obstruct and vibrate the airway, making breathing difficult. This video discusses an effective treatment for sleep apnea, a device that provides continuous positive airway pressure.

Delayed sleep phase syndrome (DSPS) refers to someone who is an extreme “night owl.” A person with this syndrome feels most alert at the end of the day, when most other people are ready to turn in. In this video, you'll learn about your internal body clock and its effect on the sleep-wake cycle.

Each winter, millions of people suffer from influenza—the flu. The flu virus infects the nose, throat, and lungs, and spreads from person to person through coughs and sneezes. The video explains why a flu shot is important to help prevent this illness, which can be life-threatening in older adults.

An MDI is the most commonly used inhaler in treating lung diseases such as asthma and COPD. Unfortunately, many people who need an inhaler do not use it correctly, so they don't receive the full benefit of the medication. Watch this video to learn the best way to use your inhaler.

Narcolepsy is a chronic sleep disorder in which a person typically becomes sleepy or falls asleep, often at inappropriate times. This disorder may run in families and may begin at any age. In this video, you'll find out how narcolepsy develops, symptoms to watch for, and available treatments.

Obstructive sleep apnea (OSA) is a common problem that affects more people than diabetes or asthma. Untreated, OSA can lead to serious health problems, including high blood pressure and heart failure. This video gives an overview of OSA and how it is treated.

Parasomnias are disorders that disrupt sleep. If you walk or talk in your sleep or toss while dreaming, you probably have a parasomnia. These behaviors can wake you up partially or fully or disturb the sleep-stage transition. This video explains the different types of parasomnias and what to do if you have one.

A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor what's going on inside your lungs by measuring airflow out of the lungs. The meter can tell you if your airways are narrowing well before asthma symptoms begin. Learn how to use a peak flow meter, how to find your "personal best," and how to set your peak flow zones.

Periodic limb movements of sleep (PLMS) is a sleep disorder characterized by uncontrolled, repeated movements in the lower limbs during sleep. A person with this disorder may not be aware of it and simply feel tired the next day. This video explores the possible causes and typical symptoms of PLMS.

Pneumococcal disease is a serious infection that affects the lungs, as well as other parts of the body. You can protect yourself against this illness by getting a vaccination. This video talks about who should get this shot and why this illness can be life-threatening.

Insomnia is defined as a difficulty falling asleep and/or maintaining sleep. It is a symptom, not a disorder. This video explores medical conditions and experiences that can cause insomnia and what your doctor may recommend for a good night's sleep.

Stress is a part of life, but chronic stress can lead to health problems. Relaxation exercise can help you counteract the negative effects of stress. This video discusses the importance of learning to relax and different relaxation techniques you can try.

Restless legs syndrome (RLS) is an unpleasant sensation that occurs while sitting or lying still, especially before or at bedtime. People with RLS describe a tingling, creepy-crawly, burning, or restless feeling in their legs. This video discusses possible causes of RLS and what you can do to minimize symptoms.

A child with obstructive sleep apnea (OSA) has a partial or complete blockage of the airways during sleep, which causes pauses in breathing. This video explains who is at risk for OSA—it's most common between ages 2 and 7—and what you can do as a parent.

Sleep hygiene refers to lifestyle habits that encourage a good night's sleep. These include sticking to a regular sleep schedule and setting up a relaxing environment before bedtime. This video explains why sleep hygiene is important and offers suggestions on how to improve yours.

A sleep study, also called a polysomnogram, is an overnight study of your sleep. This study takes place in a specialized lab and is designed to detect problems with your sleep. In this video, you'll find out what to expect during your night in the sleep lab.

A relapse happens when you return to smoking after a period of quitting—usually after the first three months. Most people experience several relapses before quitting for good. This video discusses situations that can trigger a relapse and offers a range of coping skills and behavior changes to get you back on track.

Cigarette smoking is the single leading cause of preventable death and disease in the United States. But because of the physical and psychological addiction to nicotine, smokers find it quite difficult to quit. This video offers important reasons to stop smoking and a framework of change to help you achieve your goal.