Primary Insomnia: Symptoms, Diagnosis, and Treatment

Could learning to apply healthy sleep hygiene habits help improve sleep and overall health for individuals with sleeping difficulties?

Primary Insomnia

Insomnia affects most adults at some point in their lives. Primary insomnia is a fairly common condition characterized by difficulty sleeping, and sometimes, it can resolve without treatment. A diagnosis of primary insomnia means that there is no need to worry that a medical or psychological issue is causing sleep problems. Secondary insomnia is the result of medication side effects or medical or psychological issues. However, individuals may need a diagnostic evaluation, including blood tests or an overnight sleep study, to determine an underlying cause for persistent insomnia. Managing lifestyle habits is usually effective for the relief of primary insomnia. If that doesn’t work, medical treatment may be recommended.

Symptoms

Primary insomnia means not getting enough sleep. Individuals with primary insomnia average six hours of sleep per night (Flynn-Evans E. E. et al., 2017). They often toss and turn or get out of bed frequently. Typically, primary insomnia makes it hard to fall asleep and/or stay asleep. Individuals can wake up easily by triggers like noises or even without triggers. Sleep deprivation can lead to several health problems when awake. Symptoms of insomnia fatigue include: (Salisbury-Afshar E. 2018)

• Trouble waking up in the morning
• Constant yawning
• Feeling tired and sleepy throughout the day
• Lack of energy for physical activity
• Lack of motivation
• Hunger
• Difficulty concentrating
• Irritability
• Headaches
• Hypersomnia or falling asleep during the day
• Sensitivity to noise or lights when awake
• Bouts of hyperactivity
• Jumpiness
• Being easily alarmed or frightened

Individuals can experience these symptoms for a few days in a row and resolve the day after a restful night of sleep or after a nap. There are times when fatigue can help with falling asleep, which helps to resolve insomnia.

Complications

Individuals can develop severe anxiety and distress about the fact that they are not getting enough sleep. This anxiety is usually more severe before going to bed or in the middle of the night, but the worry can continue during the day as well. Persistent insomnia and chronic lack of sleep can lead to depression and predispose the mind and body to health complications. (Sun, Q., & Tan, L. 2019) Insufficient sleep is associated with lowered immune system function, obesity, and heart disease. (Hung C. M. et al., 2018)

Causes

The conundrum of primary insomnia is that it does not have an identifiable cause, but certain risk factors predispose individuals to have primary insomnia. The condition persists throughout a person’s life, often worsening or improving for months or years. Primary insomnia can be more common among those who have family members with insomnia. Research has found that, while primary insomnia isn’t caused by psychiatric issues, tending to stress or a worry-prone personality might be predisposing factors. (Hung C. M. et al., 2018)

Circadian Rhythm

Research has found that primary insomnia is associated with circadian rhythm irregularities. It can result from individuals falling into deeper sleep phases earlier than those who don’t have the condition (Flynn-Evans E. E. et al., 2017). However, it can be challenging to know whether early deep sleep is a cause or an effect of primary insomnia. This is because sleep deprivation can also lead to abrupt or rapid onset of deep sleep.

Diagnosis

Getting enough sleep is a common concern throughout life. Diagnosing primary insomnia involves various steps. One of the main components of identifying insomnia is determining whether the individual needs more sleep than they are getting. For individuals who are unable to get the proper amount of sleep, the second aspect of primary insomnia diagnosis is focused on finding the reason for their lack of sleep. Diagnostic tests measure insomnia and its effects and include:

Sleep Study

• A polysomnogram is an overnight sleep study measuring brain activity, muscle activity, and breathing.
• The polysomnogram is expected to show decreased sleep and normal breathing patterns if it is primary insomnia. (Sun, Q., & Tan, L. 2019)

Pittsburgh Sleep Quality Index

• The PSQI is a questionnaire that includes a self-assessment of sleep.
• It helps identify sleep patterns and issues like using the bathroom frequently at night.

Multiple Sleep Latency Test

• An MSLT is a daytime nap study in which participants are monitored to determine how fast they fall asleep.
• The test results are a reflection of your sleep deprivation.

These studies help assess whether an individual is not getting enough sleep and what type of sleep interruption is experienced. Other tests might include screening questionnaires or other assessments of emotional issues like depression and anxiety. Sometimes, individuals are aware of these problems but may dismiss symptoms of depression and anxiety, and they instead manifest as insomnia.

Ruling Out Underlying Causes

Medical causes of insomnia can include: (Guo H. M. et al., 2017)

• Thyroid disease
• Liver disease
• Dementia
• Restless leg syndrome
• Breathing problems.

Individuals might need to have tests to determine whether any of these underlying issues are contributing to their insomnia. Individual medical symptoms and physical examination would guide the diagnostic testing.

Sleep Hygiene Habits

Individuals can start making small lifestyle adjustments to help regulate their sleep. The key is to avoid things that prevent falling asleep when you want to. Healthy habits include:

• Avoid caffeine in the afternoon or evening.
• Avoid alcohol.
• Avoid napping during the day.
• Don’t turn on a phone, computer, or television screen in the bedroom before bed.
• Staying away from bright lights for several hours before sleep.
• Scheduling tasks so you feel caught up before going to sleep.
• Getting enough to eat so you aren’t hungry before going to bed.
• Not eating so much that you feel bloated before going to bed.
• Doing some light exercise several hours before going to bed.

Medical Treatment

If lifestyle habits don’t help alleviate insomnia, talk to a healthcare provider about medical therapy. Some notice a benefit from treatment with non-prescription-based strategies like counseling, cognitive behavioral therapy for insomnia (CBT-I), or acupuncture. These approaches can have a longer-lasting effect without the risk of side effects. (Salisbury-Afshar E. 2018) A healthcare provider might recommend melatonin or may prescribe medication such as antidepressants, antihistamines, or benzodiazepines.

Injury Medical Chiropractic and Functional Medicine Clinic

Navigating insomnia can be challenging, but understanding the treatment process can significantly help the individual. A healthcare provider can determine the most effective treatment strategies. This can include physical therapy, rest, health coaching, and medication. Overcoming these limitations is possible. Injury Medical Chiropractic and Functional Medicine Clinic works with primary healthcare providers and specialists to develop an optimal health and wellness solution. We focus on what works for you to relieve pain, restore function, prevent injury, and help mitigate issues through adjustments that help the body realign itself. They can also work with other medical professionals to integrate a treatment plan to resolve musculoskeletal problems.

Building a Stronger Body

References

Flynn-Evans, E. E., Shekleton, J. A., Miller, B., Epstein, L. J., Kirsch, D., Brogna, L. A., Burke, L. M., Bremer, E., Murray, J. M., Gehrman, P., Rajaratnam, S. M. W., & Lockley, S. W. (2017). Circadian Phase and Phase Angle Disorders in Primary Insomnia. Sleep, 40(12), 10.1093/sleep/zsx163. doi.org/10.1093/sleep/zsx163

Salisbury-Afshar E. (2018). Management of Insomnia Disorder in Adults. American Family Physician, 98(5), 319–322.

Sun, Q., & Tan, L. (2019). Comparing primary insomnia to the insomnia occurring in major depression and general anxiety disorder. Psychiatry Research, 282, 112514. doi.org/10.1016/j.psychres.2019.112514

Hung, C. M., Li, Y. C., Chen, H. J., Lu, K., Liang, C. L., Liliang, P. C., Tsai, Y. D., & Wang, K. W. (2018). Risk of dementia in patients with primary insomnia: a nationwide population-based case-control study. BMC psychiatry, 18(1), 38. doi.org/10.1186/s12888-018-1623-0

Guo, H. M., Liu, M., Xiang, Y. T., Zhao, J., Ungvari, G. S., Correll, C. U., Ng, C. H., Chiu, H. F., & Duan, Z. P. (2017). Insomnia in Adults With Chronic Hepatitis B, Liver Failure, and Cirrhosis: A Case-Control Study. Perspectives in psychiatric care, 53(1), 67–72. doi.org/10.1111/ppc.12138