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Dartmouth-Hitchcock
Medical Center

Symptoms of Sleep Disorders

Snoring
Snoring is an indication of turbulent airflow through the upper airway.

What causes snoring?
As we fall asleep, the muscles in our upper airway relax. When this occurs, the airway becomes narrowed. The distinctive sound of snoring comes from the flow of air through the upper airway passages causing the surrounding tissues to vibrate. The more restricted your air passages become, the greater the vibration and the louder your snoring. Loud snoring is a common symptom of a potentially life-threatening sleep disorder called obstructive sleep apnea.

What factors contribute to snoring?

You may not be aware that you snore, but your family or friends could be. Since snoring can be a symptom of a serious problem, and one that can be treated, it is important for anyone who snores loudly to discuss the problem with a health care provider, especially if you are overweight or drowsy during the daytime.

Excessive Daytime Sleepiness
Excessive Daytime Sleepiness (EDS) is the inability to maintain wakefulness during normal "waking" hours. Someone with EDS feels very drowsy during the day and has an overwhelming urge to fall asleep, even after getting enough nighttime sleep. EDS is a common symptom of several sleep disorders and can also be associated with medical illnesses.

What are common causes of EDS?

What are the consequences of EDS?
EDS becomes problematic when you uncontrollably and unintentionally fall asleep in situations where you want, and often need, to stay awake. It can interfere significantly with a person's ability to concentrate and perform daily tasks and routines. People with EDS often report having difficulty with relationships, in social situations and in the workplace.

In our experience, it's common for people who are sleepy to be unaware of the extent of the problem. Over time, people adjust to a decreased level of alertness, which they perceive to be "normal." Sometimes it is the family member or friend who contacts us because of concerns about the sleepiness. At other times we are contacted by people whose jobs are threatened, who have had near misses or accidents due to falling asleep while driving, or who can no longer keep up their usual activities.

If you think you are suffering from EDS, please use the simple questionnaire on this site to determine the level of your daytime sleepiness. Then see your doctor for a medical evaluation and bring your completed questionnaire with you.

Epworth Sleepiness Scale questionnaire

Insomnia
Insomnia is difficulty in falling asleep and staying asleep despite achieving adequate sleep the previous night.

What are the different types of Insomnia?

What causes Chronic Insomnia?
Insomnia, which is viewed as a symptom of some underlying problem, has been associated with a variety of factors.

Lifestyle

Sleep Environment Factors

Psychological Health

Circadian Rhythm Sleep Disorders: Disturbances of timing of the sleep-wake cycle.