Excessive daytime sleepiness and a lack of energy.
Anxiety, depression or irritability.
Difficulty focusing on tasks, paying attention, learning, and remembering.
The most common type of insomnia is called secondary or co-morbid insomnia. In this instance, insomnia is a symptom or side effect of some other problem. It may be caused by medicines or substances you are taking (caffeine, for example) or other medical problems. In over 80% of insomnia sufferers, there are secondary causes that contribute to insomnia.
Primary insomnia isn't due to a medical problem, medicines, or other substances and is its own disorder. A number of life changes can trigger primary insomnia, including long-lasting stress and emotional upset.
A sleep specialist will take your medical history and conduct a complete physical exam. This will help determine whether insomnia is caused by an underlying medical condition.
You may be asked to keep a daily sleep log. In it you will record how easy it is to fall and stay asleep, how much sleep you get at night, and how alert you feel during the day.
If the cause of insomnia is uncertain, your physician may refer you to a specialist at one of the three Riverside Centers for Sleep Medicine where a sleep study may be conducted.