Restless Legs at Night? Understanding the Neurological Causes of RLS

Restless Leg Syndrome (RLS) is more than an irritating nighttime sensation—it is a recognized neurological condition that affects the brain, nerves, and overall sleep quality. Many people who experience twitchy, restless, or uncomfortable legs at night don’t realize that these sensations are connected to underlying changes in the nervous system.

If you regularly feel a strong urge to move your legs when you’re trying to fall asleep, you may be dealing with RLS.

Why Do My Legs Feel Restless, Tingling, or Strange at Night?

Restless Leg Syndrome (RLS)—also known as Willis–Ekbom Disease—is classified as a sensory-motor neurological disorder. People with RLS often describe sensations such as:

  • Tingling
  • Crawling
  • Pulling
  • Burning
  • Internal restlessness

These symptoms often appear during rest and worsen in the evening or nighttime, which is why RLS is one of the common causes of insomnia and disrupted sleep.

Because the symptoms improve temporarily when you move your legs, RLS becomes a cycle of discomfort → movement → brief relief → discomfort again. Over time, this can lead to chronic sleep deprivation, fatigue, irritability, and reduced quality of life.

Is Restless Leg Syndrome (RLS) Neurological Disorder? Does It Come from the Brain or the Nerves?

Research shows that RLS involves both:

1. The Brain (Central Nervous System)

The primary issue appears to be dysfunction in dopamine pathways, especially in brain regions that control movement. When dopamine signaling is impaired, the legs feel restless and uncomfortable.

Low brain iron levels are also strongly linked to RLS because iron is essential for healthy dopamine activity.

2. The Peripheral Nerves

Nerves in the legs carry sensations to the brain. If these pathways are damaged or irritated—for example, in peripheral neuropathy—they can trigger RLS symptoms.

RLS is therefore not “in your imagination.” It’s a biological condition involving measurable neurological changes.

How Do I Know If I Might Have Restless Leg Syndrome?

Common signs of Restless Leg Syndrome include:

  • A powerful urge to move your legs
  • Unpleasant sensations such as crawling or burning
  • Symptoms that worsen during periods of rest
  • Relief that comes only when you move the legs
  • Nighttime worsening that disrupts sleep

If these symptoms occur several times a week, especially in the evening, Restless Leg Syndrome is a strong possibility.

What Causes Restless Leg Syndrome(RLS)?

Restless Leg Syndrome (RLS) can be either primary or secondary.

Primary RLS

Often hereditary, especially when symptoms begin before age 40.

Secondary RLS

Potential causes and risk factors include:

  • Iron deficiency or low ferritin
  • Kidney disease
  • Peripheral neuropathy
  • Pregnancy, especially the third trimester
  • Certain medications (antihistamines, antidepressants, antipsychotics)
  • Chronic conditions such as diabetes or Parkinson’s disease
  • Spinal cord issues
  • Older age and female sex

Addressing these underlying issues often improves symptoms.

How Is Restless Leg Syndrome Diagnosed?

There is no single test for RLS. Diagnosis is based on:

  • Symptom description
  • Medical history
  • Neurological examination
  • Blood tests (especially ferritin levels)
  • Ruling out other causes like neuropathy or muscle cramps

Many patients remain undiagnosed for years, so a neurology evaluation is often the fastest and most accurate way to get answers.

What Treatments Can Help with Restless Leg Syndrome (RLS)?

Treatment aims to reduce symptoms, improve sleep, and address root causes.

Lifestyle and Home Treatments

  • Regular physical activity
  • Stretching and leg massages
  • Warm baths or heating pads
  • Avoiding caffeine, alcohol, and nicotine
  • Establishing a consistent sleep routine

Medical Treatment Options

  • Iron supplementation if ferritin is low
  • Dopamine agonists
  • Anti-seizure medications that calm nerve overactivity
  • In severe cases, opioid medications (usually short-term)

Treating underlying problems—such as neuropathy, kidney disease, or pregnancy-related issues—can greatly reduce symptoms.

Can I Live a Normal Life with Restless Leg Syndrome (RLS)?

Yes. Many people live full, active lives with RLS once they understand the condition and receive appropriate treatment. Early diagnosis is key.

A neurologist can:

  • Confirm the cause of your symptoms
  • Identify contributing factors
  • Create a personalized treatment plan
  • Help you improve sleep and daily functioning

Restless Leg Syndrome (RLS) doesn’t have to control your nights—or your life.

If your restless legs are affecting your sleep, mood, or daily activities, a neurological evaluation can help you pinpoint the cause and explore new treatment options. Restless Leg Syndrome (RLS) is treatable—and the sooner you seek help, the sooner you can rest comfortably again.