Neurological causes of insomnia include primary sleep disorders like restless legs syndrome and neurological conditions like Parkinson’s disease, epilepsy, and neuromuscular disorders.
Many neurological conditions that affect your brain and nervous system also affect your ability to keep healthy sleep patterns. Neurological causes of insomnia include chronic conditions such as Parkinson’s disease and epilepsy, as well as acute incidents such as stroke and traumatic brain injury.
Insomnia also occurs when your normal circadian rhythm is affected by degenerative brain conditions such as dementia.
Some primary sleep disorders, such as restless legs syndrome and central sleep apnea, are also neurological causes of insomnia.
This article will explain why neurological conditions can cause insomnia and outline treatments to help you sleep through the night.
Neurological sleep disorders can affect the duration, timing, and quality of your sleep. They may interfere with your ability to sleep by causing uncomfortable sensations or movements, such as in restless legs syndrome. They may also impair your natural circadian rhythm, or sleep-wake cycle.
Sleep disorders that are considered neurological include:
- restless legs syndrome
- rapid eye movement (REM) sleep disorder
- central sleep apnea
- circadian rhythm disorders
- central nervous system hypersomnia
Changes in nerve-signaling chemicals called neurotransmitters can also affect nervous system activity and disrupt your sleep. The neurotransmitters that regulate the sleep-wake cycle include gamma aminobutyric acid (GABA), acetylcholine, cortisol, and serotonin.
Insomnia is often caused by neurological diseases and conditions that impair your ability to fall and stay asleep. When this happens, it’s known as secondary insomnia.
Conditions that increase your risk of insomnia include:
Sleep disorders such as insomnia are
Movements, such as tremors, may make it more difficult to fall asleep, and rarely, they can wake you up in the middle of the night. Conditions that often occur alongside Parkinson’s disease, such as restless legs syndrome, can also affect sleep.
Alzheimer’s disease and other dementias
Researchers suggest that insomnia may speed up the progression of Alzheimer’s disease and that treating sleep disorders may help improve symptoms.
It’s not clear exactly how stroke causes insomnia. But researchers believe it may be
Insomnia following a stroke may also be due to environmental factors such as being hospitalized or sleeping in an unfamiliar environment. It could also be due to medication side effects.
Other factors affecting sleep include nighttime seizures, the effects of anxiety and depression, and antiseizure medications.
If your insomnia is linked to a neurological disorder, a primary care physician may refer you to a neurologist — a doctor who specializes in diseases of the brain, spinal cord, and nerves.
Your treatment will depend on the specific neurological condition you have. A doctor may prescribe medications
- antidepressants, like venlafaxine
A doctor may advise cognitive behavioral therapy (CBT) to treat insomnia. This form of therapy helps you recognize unhelpful thoughts and behavior patterns and teaches you better ways of coping. This may help you get to sleep more quickly and stay asleep longer.
Bright light therapy may also be
Your healthcare team may recommend lifestyle changes such as:
Insomnia may seem mild because it’s not acutely life threatening. But it can lead to other issues such as irritability, daytime fatigue, and a lack of coordination, which ultimately lower your quality of life.
If you’re consistently having difficulty falling and staying asleep, or you often wake up too early (even when you don’t want to), you might consider speaking with a doctor, whether you have a preexisting neurological disorder or not.
If you have trouble sleeping at night, these tips may help:
- Be consistent; go to sleep and wake up at the same time every day.
- Keep naps short so you can get ample sleep at night.
- Eliminate all light sources in your room or use an eye mask.
- Keep your room at a cool but comfortable temperature.
- Avoid eating large portions of food close to bedtime.
- Turn off all electronic gadgets a few hours before bed.
- Try relaxation techniques like mindfulness meditation.
Insomnia is a sleep disorder that has several potential causes. Many sleep disorders, such as restless legs syndrome, are neurological in nature. It’s also common for people with neurological diseases and conditions to experience trouble sleeping. Talk with a doctor if you’re experiencing excessive daytime sleepiness or other symptoms of insomnia.