Have you ever had one of those nights where you just couldn’t seem to fall asleep? While that happens to everyone every once in a while, people with insomnia have to deal with these symptoms night after night.
Some people with insomnia have
trouble falling asleep, whereas others wake up throughout the night and
struggle to fall back asleep, and these disturbances typically happen at least
3 times each week. Acute insomnia lasts less than a month, whereas chronic
insomnia lasts over a month. Insomnia affects both the quantity and quality of
sleep, which makes it hard for individuals to reach the restorative levels of
sleep which cause daytime sleepiness and fatigue, and over time—feelings of
irritability, anxiety, and depression. This can lead to professional and personal
problems, as well as day-to-day challenges like falling asleep while driving.
Although insomnia can happen without an underlying cause, it can also accompany and worsen other problems like pulmonary diseases, psychiatric conditions, and a whole variety of conditions that might cause pain. Insomnia is also a common side effect of stimulants like caffeine, as well as depressants like alcohol, which can both disrupt the regular sleep cycle. Finally, and probably most commonly, insomnia can be the result of daily stresses from work or relationships as well environmental factors such as having to work a night shift or having a newborn baby.
There are a number of biological
factors associated with insomnia. Studies have shown that people with insomnia
might have heightened levels of the stress hormone cortisol, which plays a role
in the process of waking up every morning. People with insomnia are also more
sensitive to the effects of cortisol, typically waking up at much lower levels
of cortisol as compared to the general population. In addition, insomnia is
also associated with reduced levels of estrogen and reduced levels of
progesterone, which can happen during menopause. Commonly, individuals with
insomnia will self-medicate with alcohol and benzodiazepines, both of which can
be extremely dangerous.
Alcohol abuse can lead to a number
of physical and psychological changes that can rapidly worsen the sleep-wake
cycle and lead to dependence. Similarly, benzodiazepines, especially
short-acting ones, can also create dependence and have a high abuse potential,
which can actually worsen insomnia if someone tries to stop using them.
One method of treatment is getting
good sleep hygiene, which includes going to sleep and waking up at the same
time every day including weekends, getting good exercise (but not right before
bed), reducing alcohol intake, avoiding daytime naps, avoiding caffeine and
smoking in the evening, and not going to sleep hungry. Another potential
treatment is stimulus control which includes using the bed only to sleep rather
than a place from which to watch television, text, or talk on the phone. It
also helps to keep the environment calm by removing bright lights like a
computer or a phone screen and minimizing noise. Sometimes, though, these are
unavoidable in which case eye covers and earplugs can definitely help. It’s
also not helpful to try to force sleep to happen, which means that people that
can’t sleep after 20 minutes should simply leave the bed and then return when
they feel ready to sleep.
These suggestions help the
individual associate sleep—and only sleep—with the bedroom. Also, there’s
behavior therapy, which includes relaxation techniques as well as cognitive behavioral
therapy to help better manage problems and life stressors. While these
techniques are being used, some medications such as melatonin agonists,
non-benzodiazepine sedatives, and occasionally benzodiazepines might be
prescribed to help with sleep. These medications can often have side effects,
though, so they are generally used for less than two months, usually in
combination with behavioral therapy techniques.
Alright so as a quick recap. Insomnia
is an inability to get restorative sleep that causes daytime sleepiness and
fatigue and can be managed with good sleep hygiene, stimulus control, behavior
therapy, and occasionally short courses of medications.