Tired? Got insomnia?

Sleep and wake are two sides of the same coin. Sleep affects daytime alertness and being awake in the day affects sleep at night. A basic concept of sleep-wake physiology is that there is a homeostatic mechanism at work, just like there is for hunger and eating. We get hungry so we eat, then get satiated and stop eating. If we don't eat we get hungry and want to eat. So too with sleep: We stay up all day and then get sleepy. We sleep and get less sleepy so we stop sleeping and are awake for a while.

This aspect of sleep is true, but it is not the whole story. Time-of-day (circadian) affects the likelihood of sleepiness or alertness for example. Also, the relationship breaks down in case of a disease or a sleep disorder. This is the topic for today: daytime sleepiness in people who have insomnia.

When we talk about insomnia, sometimes we might be talking about a symptom that happens once in a while, or we might be talking about a long-term condition itself, also called primary insomnia. This is the most common type of insomnia, the type that many people have even though they are not depressed and do not have another sleep disorder. Primary insomnia often begins with a stress of some kind, and over time becomes associated with anxiety and frustration in the night.

The interesting thing about people with primary insomnia is that even though they might only sleep 5 hours in the night, they usually cannot sleep during the day. This is a major difference from normal people, who if they have an occasional bad night are usually tired and sleepy the next day, and sleep more the next night. Again, for those people with primary insomnia, although they might be tired, exhausted, and can't function the next day, they usually cannot nap either. This is referred to as being "hyper-aroused." The usual homeostatic relationship between sleep and wake is altered, and there is less sleep in the night and less sleep in the day.

The lesson is this: If you have insomnia in the night lasting more than 3 months, AND if you are sleepy in the day, it is not likely that you have primary insomnia. It is more likely that you a sleep disorder causing the awakenings at night and you are trying to catch up in the day. This pattern of insomnia needs to be evaluated by a doctor and perhaps a sleep study to rule out sleep apnea or periodic limb movements. It should not be treated with sleeping pills until that time. Excessive daytime sleepiness, such as falling asleep when sedentary, is a symptom that needs evaluated no matter what.

-- Cure Your Insomnia with 90% Success Rate now! --