You finally get into bed after a long day, ready to fall asleep. Then it starts—a strange sensation in your legs that creates an overwhelming urge to move them. Walking around helps temporarily, but the feeling returns as soon as you sit or lie down again.

If this sounds familiar, 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 interfere with sleep and quality of life.

What Is Restless Legs Syndrome?

RLS is a condition characterized by:

• An urge to move the legs
• Uncomfortable sensations in the legs
• Symptoms that worsen during rest
• Temporary relief with movement
• Symptoms that are often worse in the evening or at night

The sensations can be difficult to describe and vary from person to person.

People commonly describe them as:

• Crawling
• Tingling
• Pulling
• Aching
• Itching deep inside the legs
• Electric-like sensations
• A feeling of “energy” in the legs

Unlike muscle cramps, RLS is usually relieved by movement.

Why Does RLS Happen?

The exact cause is not always known, but researchers believe it involves abnormalities in how the brain regulates movement and sensory signals.

Two factors appear particularly important:

Dopamine Function

RLS is linked to changes involving:

Dopamine

Dopamine helps coordinate movement, and disruptions in dopamine signaling may contribute to RLS symptoms.

Iron Levels in the Brain

Iron plays an important role in dopamine function.

Even when blood iron levels appear normal, low iron levels within certain areas of the brain may contribute to RLS.

This is one reason doctors often check iron status in people with RLS symptoms.

Common Causes and Risk Factors

Iron Deficiency

One of the most common identifiable contributors is:

Iron Deficiency

Low iron can increase the likelihood of RLS symptoms.

Treating iron deficiency may significantly improve symptoms in some individuals.

Family History

RLS often runs in families.

People with close relatives who have RLS may be more likely to develop it themselves.

Pregnancy

Pregnant women, particularly during the third trimester, may experience temporary RLS symptoms.

In many cases, symptoms improve after delivery.

Chronic Kidney Disease

People with:

Chronic Kidney Disease

have a higher risk of developing RLS.

Certain Medications

Some medications may worsen symptoms, including certain:

• Antihistamines
• Antidepressants
• Antipsychotic medications
• Anti-nausea medications

Never stop prescribed medications without consulting your healthcare provider.

Other Medical Conditions

RLS may occur alongside:

• Diabetes
• Peripheral neuropathy
• Parkinson’s disease
• Sleep disorders

Sometimes no underlying cause can be identified.

Why Is RLS Worse at Night?

The body’s internal clock appears to influence RLS symptoms.

Many people notice that symptoms:

• Are mild during the day
• Become more intense in the evening
• Peak around bedtime

This timing makes sleep particularly difficult.

How RLS Affects Sleep

RLS can interfere with:

• Falling asleep
• Staying asleep
• Overall sleep quality

As a result, people may experience:

• Daytime fatigue
• Difficulty concentrating
• Irritability
• Reduced quality of life

Some individuals also experience:

Periodic Limb Movement Disorder

which can further disrupt sleep.

How Is RLS Diagnosed?

There is no single laboratory test that confirms RLS.

Diagnosis is usually based on symptoms, including:

An urge to move the legs

Symptoms worsen during rest

Movement provides relief

Symptoms are worse in the evening or night

Healthcare providers may also order tests to evaluate possible contributing factors.

What Provides Relief?

Move Around

Walking often provides temporary symptom relief.

Many people find that:

• Getting out of bed briefly
• Walking around the room
• Gentle movement

reduces discomfort.

Stretching

Gentle stretching before bed may help reduce symptoms in some individuals.

Common options include:

• Calf stretches
• Hamstring stretches
• Light yoga

Exercise Regularly

Moderate physical activity is associated with symptom improvement for many people.

Helpful activities include:

• Walking
• Cycling
• Swimming

However, intense exercise immediately before bedtime may worsen symptoms in some individuals.

Improve Sleep Habits

Because sleep deprivation can worsen RLS, maintaining healthy sleep habits is important.

Aim for:

• Consistent sleep schedules
• Adequate sleep duration
• A comfortable sleep environment

Limit Triggers

Some people notice worsening symptoms after:

• Caffeine
• Alcohol
• Nicotine

Reducing or eliminating these triggers may help.

Iron Testing Matters

Because iron deficiency is strongly associated with RLS, healthcare providers often check iron-related blood tests.

Examples may include:

• Ferritin
• Iron studies
• Complete blood count

Treatment recommendations depend on the results.

Are Medications Available?

Yes.

For moderate to severe RLS, healthcare providers may prescribe medications that affect dopamine signaling or other neurological pathways.

Treatment is individualized and depends on:

• Symptom severity
• Underlying causes
• Other medical conditions

Medication decisions should always be made with a qualified healthcare professional.

When to See a Doctor

Consider medical evaluation if:

• Symptoms occur frequently
• Sleep is regularly disrupted
• Daytime fatigue is significant
• Symptoms are worsening
• Home measures are not helping

A healthcare provider can evaluate for iron deficiency and other potential contributors.

Common Myths

Myth: It’s Just Muscle Cramps

Reality:
RLS is a neurological condition and differs from ordinary muscle cramps.

Myth: Moving Makes It Worse

Reality:
Movement usually provides temporary relief.

Myth: It’s Only a Minor Annoyance

Reality:
For some people, RLS can severely affect sleep and quality of life.

Bottom Line

Restless Legs Syndrome is a neurological condition that causes uncomfortable leg sensations and an irresistible urge to move, especially during periods of rest and at night. Symptoms often interfere with sleep and may be linked to factors such as iron deficiency, genetics, pregnancy, kidney disease, certain medications, and abnormalities in dopamine signaling.

Relief often involves addressing underlying causes, improving sleep habits, regular physical activity, stretching, and reducing triggers such as caffeine and alcohol. If symptoms are frequent, severe, or disrupting sleep, medical evaluation is important because effective treatments are available.