Almost everyone goes through bouts of sleeplessness from time to time. It happens to the average person about once a year. That's the cost of being human and having the capacity to worry about the future and chew over the past.
Chronic insomnia, however, is marked by difficulty falling asleep or staying asleep, or waking up too early. If it takes you thirty minutes or more to fall asleep, or you're awake for thirty minutes or more during the night at least three times a week–for a month or more–you're offically suffering from insomnia. Nearly 10 percent of the U.S. population experiences chronic insomnia, according to the Centers for Disease Control and Prevention.
Insomnia has major effects on mood as well as alertness. It is also a classic symptom of depression.
Short-acting sleeping pills may improve sleep and next-day alertness. But the best way to handle a bout of insomnia is to do nothing; the body's sleep mechanism tends to right itself, if given the chance.