Do you ever feel an irresistible urge to move your legs when you’re trying to relax or fall asleep? Perhaps it feels like crawling, tingling, pulling, itching, or an uncomfortable sensation deep inside the legs that improves only when you move.

If so, you may be experiencing:

Restless Legs Syndrome

Restless Legs Syndrome (RLS), also known as Willis-Ekbom disease, is a common neurological condition that can significantly disrupt sleep and quality of life. Despite affecting millions of adults, it is often misunderstood or mistaken for simple restlessness.

What Is Restless Legs Syndrome?

RLS is a neurological condition characterized by:

• An overwhelming urge to move the legs
• Uncomfortable sensations in the legs
• Symptoms that worsen during rest
• Symptoms that improve with movement
• Symptoms that are usually worse in the evening or at night

The condition can range from mild and occasional to severe and disruptive.

What Does RLS Feel Like?

People describe RLS sensations in many different ways, including:

• Crawling
• Tingling
• Pulling
• Aching
• Burning
• Itching
• Electric-like sensations
• A feeling of something moving under the skin

The sensations are often difficult to describe but are distinctly uncomfortable.

Importantly, the urge to move is usually stronger than the sensation itself.

Why Does It Happen Mostly at Night?

One hallmark of RLS is that symptoms tend to worsen:

• In the evening
• During periods of inactivity
• At bedtime
• During long periods of sitting

Researchers believe this may be related to the body’s internal clock and changes in brain chemicals that occur throughout the day.

The Sleep Problem

Many people with RLS have trouble:

• Falling asleep
• Staying asleep
• Returning to sleep after waking

Over time, this can lead to:

• Fatigue
• Daytime sleepiness
• Difficulty concentrating
• Mood changes
• Reduced quality of life

For some individuals, sleep disruption becomes the most disabling aspect of the condition.

What Causes Restless Legs Syndrome?

The exact cause is not fully understood, but several factors appear to be involved.

Brain Dopamine Function

Researchers believe abnormalities involving dopamine—a chemical messenger involved in movement control—play an important role.

Dopamine helps regulate muscle activity and movement.

Changes in dopamine signaling may contribute to RLS symptoms.

Iron Deficiency

One of the strongest known associations is:

Iron Deficiency

Even people who are not anemic may have low iron stores that contribute to RLS symptoms.

Iron is involved in dopamine function within the brain.

Genetics

RLS often runs in families.

People with a parent or sibling who has RLS may have a higher risk of developing the condition themselves.

Pregnancy

RLS may occur during pregnancy, particularly during the third trimester.

Symptoms often improve after delivery.

Chronic Medical Conditions

RLS is more common among people with:

• Chronic Kidney Disease
• Diabetes
• Peripheral neuropathy
• Iron deficiency

Treating underlying conditions may sometimes improve symptoms.

Medications That May Worsen Symptoms

Some medications can aggravate RLS in certain individuals, including:

• Some antihistamines
• Certain antidepressants
• Some anti-nausea medications

Never stop a prescribed medication without discussing it with your healthcare provider.

Periodic Limb Movements During Sleep

Many people with RLS also experience:

Periodic Limb Movement Disorder

This involves repetitive leg jerks or movements during sleep that may further disrupt rest.

A person may be unaware these movements are occurring.

How Is RLS Diagnosed?

There is no single blood test that confirms RLS.

Diagnosis is usually based on symptoms, including:

• Urge to move the legs
• Symptoms worsening at rest
• Improvement with movement
• Evening or nighttime worsening

A healthcare provider may also order tests to identify contributing factors such as iron deficiency.

What Actually Helps?

1. Check Iron Levels

Because iron deficiency is a common contributor, healthcare providers often evaluate:

• Iron levels
• Ferritin levels (iron stores)

Treating low iron may improve symptoms in some people.

2. Improve Sleep Habits

Good sleep practices may reduce symptom severity.

Helpful strategies include:

• Consistent sleep schedules
• Limiting late-night screen use
• Maintaining a comfortable sleep environment

3. Regular Physical Activity

Moderate exercise may help some individuals.

However:

• Extreme exercise
• Overexertion

can sometimes worsen symptoms.

Balance is important.

4. Reduce Potential Triggers

Some people notice improvement when reducing:

• Caffeine
• Alcohol
• Nicotine

These substances may worsen symptoms in certain individuals.

5. Stretching and Movement

Gentle activities such as:

• Walking
• Stretching
• Massage

may provide temporary relief during symptom episodes.

Medical Treatments

For moderate to severe RLS, prescription treatment may be considered.

Medication decisions depend on:

• Symptom severity
• Sleep disruption
• Underlying causes
• Overall health

Treatment should always be individualized by a healthcare professional.

When Should You See a Doctor?

Consider medical evaluation if:

• Symptoms occur regularly
• Sleep is being disrupted
• Daytime fatigue is developing
• Symptoms are worsening
• Home measures are not helping

RLS is often treatable, especially when underlying causes are identified.

Conditions That Can Mimic RLS

Several conditions may resemble RLS, including:

• Muscle cramps
• Peripheral neuropathy
• Arthritis discomfort
• Poor circulation

A proper diagnosis helps ensure appropriate treatment.

Living With Restless Legs Syndrome

Many people find symptom control improves when they:

• Address iron deficiency
• Maintain healthy sleep habits
• Stay physically active
• Identify personal triggers
• Work with their healthcare provider

Even when symptoms cannot be completely eliminated, they can often be significantly reduced.

Bottom Line

Restless Legs Syndrome (RLS) is a neurological condition that causes an irresistible urge to move the legs, usually accompanied by uncomfortable sensations that worsen during rest and at night. The condition can interfere significantly with sleep, leading to fatigue and reduced quality of life.

Although the exact cause is not fully understood, factors such as iron deficiency, dopamine dysfunction, genetics, pregnancy, and certain medical conditions may contribute. Fortunately, many people experience improvement through lifestyle changes, treatment of underlying causes, and, when necessary, medical therapy. If your legs seem to “come alive” every night and disrupt your sleep, discussing your symptoms with a healthcare professional may help identify effective solutions.