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.

Herpes simplex is a virus in the family of viruses that cause chickenpox, shingles, and mononucleosis. One type of the herpes virus causes cold sores around the mouth; another type causes genital herpes. This video looks at the types of herpes simplex and what you can do to prevent their spread.

Herpes zoster, also known as shingles, is an uncomfortable and often very painful outbreak of skin blisters and sores. The condition is caused by the varicella-zoster virus, the same virus that causes chickenpox. This video explains how shingles develop, what treatment is available, and preventive steps to take, including vaccination.

Lead can have harmful effects on health because it blocks one of the crucial steps in blood formation. This can cause severe anemia, especially in children. This video explains what a lead screening test is and when it is warranted.

Multiple sclerosis (MS) is a slowly progressive disease of the central nervous system. MS damages the protective covering of nerve fibers, which leads to multiple physical problems. In this video, you'll learn about possible causes, the range of symptoms, and treatments available.

Myasthenia gravis is a disease of the central nervous system characterized by sporadic muscular fatigue and weakness. It occurs chiefly in the muscles of swallowing and chewing, as well as the muscles of the eyes, face, and neck. This video explores possible causes of this disease, as well as available treatments.

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.

Living with a disability is a family affair, and caregivers can feel overwhelmed by their responsibilities. Caregiving can be a very fulfilling job but also very draining. This video looks at the role of the caregiver and how a caregiver can cope with the emotional and physical demands of the situation.

The computer is one of the most liberating tools for people with disabilities. It can take information from not only a keyboard, but also a mouth stick, voice, Morris code, or other device. This video explores the options available for hands-free computing.

For people newly disabled, independent living centers can be a primary resource. ILCs offer a range of assistance, including advocacy, information and referral, housing, and peer counseling. This video gives a comprehensive look at ILCs and how they can help you.

The Christopher and Dana Reeve Paralysis Resource Center promotes the health and well-being of both people living with paralysis and their families. This video offers a profile of the center and its mission to provide comprehensive information resources and referral services.

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.

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.

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.

Febrile seizures, or seizures that occur during a fever, are one of the most common neurologic disorders of childhood. They typically appear between 6 months and 3 years of age. This video looks at the possible causes, typical symptoms, and what you should do as a parent.

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 stroke occurs when either too much blood or too little blood disrupts blood flow to part of the brain. This deprives brain tissue of necessary oxygen and nutrients. Within minutes brain cells begin to die and the result is a loss of brain function.

Trigeminal neuralgia is a disorder that causes intense, stabbing, "electric shock-like" pain in the areas of the face where the nerve is distributed the jaw, lips, eyes, nose, scalp, forehead, and face. In this video, you'll find out how this disorder develops and what treatments are available.