Fighting Insomnia

Insomnia is a common sleep disorder that can make it hard to fall asleep, hard to stay asleep, or cause you to wake up too early and not be able to get back to sleep. You may still feel tired when you wake up. Insomnia can sap not only your energy level and mood but also your health, work performance and quality of life. How much sleep is enough varies from person to person, but most adults need seven to eight hours a night. At some point, many adults experience short-term (acute) insomnia, which lasts for days or weeks. It’s usually the result of stress or a traumatic event. But some people have long-term (chronic) insomnia that lasts for a month or more. Insomnia may be the primary problem, or it may be associated with other medical conditions or medications. You don’t have to put up with sleepless nights. Simple changes in your daily habits can often help.

Symptoms

Difficulty falling asleep at night
Waking up during the night
Waking up too early
Not feeling well-rested after a night’s sleep
Daytime tiredness or sleepiness
Irritability, depression or anxiety
Difficulty paying attention, focusing on tasks or remembering
Increased errors or accidents
Ongoing worries about sleep

When to see a doctor

If insomnia makes it hard for you to function during the day, see your doctor to identify the cause of your sleep problem and how it can be treated. If your doctor thinks you could have a sleep disorder, you might be referred to a sleep center for special testing.

Causes

Insomnia may be the primary problem, or it may be associated with other conditions.

Chronic insomnia is usually a result of stress, life events or habits that disrupt sleep. Treating the underlying cause can resolve insomnia, but sometimes it can last for years.

Common causes of chronic insomnia include:

Stress. Concerns about work, school, health, finances or family can keep your mind active at night, making it difficult to sleep. Stressful life events or trauma — such as the death or illness of a loved one, divorce, or a job loss — also may lead to insomnia.
Travel or work schedule. Your circadian rhythms act as an internal clock, guiding such things as your sleep-wake cycle, metabolism and body temperature. Disrupting your body’s circadian rhythms can lead to insomnia. Causes include jet lag from travelling across multiple time zones, working a late or early shift, or frequently changing shifts.
Poor sleep habits. Poor sleep habits include an irregular bedtime schedule, naps, stimulating activities before bed, an uncomfortable sleep environment, and using your bed for work, eating or watching TV. Computers, TVs, video games, smartphones or other screens just before bed can interfere with your sleep cycle.
Eating too much late in the evening. Having a light snack before bedtime is OK, but eating too much may cause you to feel physically uncomfortable while lying down. Many people also experience heartburn, a backflow of acid and food from the stomach into the oesophagus after eating, which may keep you awake.

Chronic insomnia may also be associated with medical conditions or the use of certain drugs. Treating the medical condition may help improve sleep, but insomnia may persist after the medical condition improves.

Additional common causes of insomnia include:

Mental health disorders. Anxiety disorders, such as post-traumatic stress disorder, may disrupt your sleep. Awakening too early can be a sign of depression. Insomnia often occurs with other mental health disorders as well.
Medications. Many prescription drugs can interfere with sleep, such as certain antidepressants and medications for asthma or blood pressure. Many over-the-counter medications — such as some pain medications, allergy and cold medications, and weight-loss products — contain caffeine and other stimulants that can disrupt sleep.
Medical conditions. Examples of conditions linked with insomnia include chronic pain, cancer, diabetes, heart disease, asthma, gastroesophageal reflux disease (GERD), overactive thyroid, Parkinson’s disease and Alzheimer’s disease.
Sleep-related disorders. Sleep apnea causes you to stop breathing periodically throughout the night, interrupting your sleep. Restless legs syndrome causes unpleasant sensations in your legs and an almost irresistible desire to move them, which may prevent you from falling asleep.
Caffeine, nicotine and alcohol. Coffee, tea, cola and other caffeinated drinks are stimulants. Drinking them in the late afternoon or evening can keep you from falling asleep at night. Nicotine in tobacco products is another stimulant that can interfere with sleep. Alcohol may help you fall asleep, but it prevents deeper stages of sleep and often causes awakening in the middle of the night.

Risk factors

Nearly everyone has an occasional sleepless night. But your risk of insomnia is greater if:

You’re a woman. Hormonal shifts during the menstrual cycle and in menopause may play a role. During menopause, night sweats and hot flashes often disrupt sleep. Insomnia is also common with pregnancy.
You’re over age 60. Because of changes in sleep patterns and health, insomnia increases with age.
You have a mental health disorder or physical health condition. Many issues that impact your mental or physical health can disrupt sleep.
You’re under a lot of stress. Stressful times and events can cause temporary insomnia. And major or long-lasting stress can lead to chronic insomnia.
You don’t have a regular schedule. For example, changing shifts at work or traveling can disrupt your sleep-wake cycle.

Prevention

Good sleep habits can help prevent insomnia and promote sound sleep:

Keep your bedtime and wake time consistent from day to day, including weekends.
Stay active — regular activity helps promote a good night’s sleep.
Check your medications to see if they may contribute to insomnia.
Avoid or limit naps.
Avoid or limit caffeine and alcohol, and don’t use nicotine.
Avoid large meals and beverages before bedtime.
Make your bedroom comfortable for sleep and only use it for sex or sleep.
Create a relaxing bedtime ritual, such as taking a warm bath, reading or listening to soft music.

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