Restless Legs Syndrome: Why Your Legs Won't Let You Sleep

Restless legs syndrome (RLS) makes you feel a strong urge to move your legs when you’re resting. You may also feel itching, pulling, crawling or aching sensations. These symptoms often get worse in the evening or at night, making it hard to fall asleep. There isn’t a permanent cure for RLS, but treatment can help manage the symptoms and improve your sleep.

What Is Restless Legs Syndrome and Why Does It Affect Sleep?

Restless legs syndrome (RLS) is a sleep-related movement disorder that causes an almost irresistible urge to move your legs. You may notice it when you lie down in bed, sit for a long time or try to relax.

The uncomfortable sensations usually improve when you move your legs, walk or stretch. However, the relief may last only for a short time. The symptoms can return when you stop moving.

This is why restless legs at night can make it difficult to relax before bedtime. You may keep changing positions, moving your feet or getting out of bed to walk around. Some people also experience restless legs while sleeping, with repeated leg movements that disturb their sleep.

RLS can affect people of any age, including children. However, it becomes more common as people get older. It is also known as Willis-Ekbom disease.

What Are the Symptoms of Restless Legs Syndrome?

The main symptom of RLS is a strong urge to move your legs, usually because of uncomfortable sensations. The restless leg syndrome symptoms may vary from person to person.

Common symptoms include:

• Crawling or itching sensations: You may feel as if something is moving under your skin.
• Pulling or throbbing: Your legs may feel uncomfortable when you sit or lie down.
• Aching or restless leg syndrome pain: Some people experience pain or a deep, unpleasant feeling in their legs.
• An urge to keep moving: You may find it difficult to keep your legs still, especially at night.
• Trouble falling asleep: The discomfort may make it harder to relax and get enough sleep.

Symptoms usually start or become worse when you are resting. Walking, stretching or moving your legs may provide temporary relief.

If these symptoms keep you awake or leave you tired during the day, it is worth speaking to a doctor.

What Causes Restless Legs Syndrome?

The exact cause of restless legs syndrome is not always known. Researchers believe that several factors, including iron levels, brain chemistry and family history, may play a role.

Some common reasons for restless legs include:

1. Iron deficiency

Low iron levels are linked to RLS. Iron helps your body carry out several important functions, including those involved in brain activity. Low iron levels in the brain may affect the pathways that control movement and contribute to symptoms.

2. Family history

RLS can run in families. If a close family member has the condition, you may have a higher chance of developing it, especially if your symptoms begin at a younger age.

3. Changes in dopamine activity

Dopamine is a chemical messenger in the brain that helps control movement. Changes in the way dopamine pathways work may contribute to RLS. Researchers are still studying the exact link.

4. Pregnancy

Restless legs syndrome during pregnancy is fairly common, particularly in the later months. Changes in hormone levels and low iron levels may contribute to the symptoms. For many women, the symptoms improve after childbirth.

5. Other health conditions

Certain conditions, such as kidney disease, peripheral neuropathy (nerve damage) and Parkinson’s disease, may be associated with RLS.

6. Certain medicines and lifestyle habits

Some antidepressants, antihistamines and anti-nausea medicines can trigger or worsen symptoms. Caffeine, alcohol and nicotine may also make restless legs worse in some people.

How Is Restless Legs Syndrome Diagnosed?

There is no single test that can confirm restless legs syndrome. A doctor usually diagnoses it by asking about your symptoms, medical history and sleep habits.

Your doctor may ask questions such as:

• Do you feel a strong urge to move your legs when resting?
• Do the symptoms become worse in the evening or at night?
• Does walking or stretching provide relief?
• Do the symptoms affect your sleep?

A physical examination may help rule out other conditions that cause similar discomfort. Your doctor may also recommend blood tests to check your iron levels and look for other possible causes.

A sleep study is not usually needed to diagnose RLS. However, it may be recommended if your doctor suspects another sleep-related condition.

If your symptoms are frequent or affecting your sleep, consult a restless leg syndrome specialist, such as a neurologist or sleep medicine specialist.

What Are the Treatment Options for Restless Legs Syndrome?

Treatment depends on how severe your symptoms are and whether another condition is causing them. Although RLS has no permanent cure, the right treatment can help reduce discomfort and improve sleep.

Common treatment options include:

Treating iron deficiency: If blood tests show low iron levels, your doctor may recommend iron supplements or other treatment. Do not start taking iron supplements without medical advice, as excess iron can be harmful.

Reviewing your medicines: If a medicine is making your symptoms worse, your doctor may adjust your treatment or suggest an alternative. Do not stop prescribed medicines on your own.

Prescription medicines: If symptoms are frequent or severe, your doctor may prescribe medicines to help reduce the urge to move your legs. The choice depends on your symptoms, medical history and possible side effects.

Managing other health conditions: Treating an underlying condition may help improve symptoms in some people.

Your doctor can help you decide which treatment is suitable for you.

How Can You Manage Restless Legs Syndrome and Sleep Better?

A few changes to your daily routine may help ease restless legs at night, especially if your symptoms are mild.

• Keep a regular sleep schedule: Try to go to bed and wake up at the same time every day.
• Stretch before bedtime: Gentle leg stretches may help you feel more comfortable.
• Try a warm bath: Soaking your legs in warm water before bed may help relieve discomfort.
• Stay active during the day: Regular, moderate exercise can help, but avoid strenuous workouts close to bedtime.
• Limit caffeine and alcohol: Tea, coffee and alcohol may worsen symptoms in some people, so notice whether reducing them helps.
• Massage your legs: Gentle massage or a warm or cool compress may provide temporary relief.
• Make your bedroom comfortable: Keep your room dark, quiet and cool to support better sleep.

These steps may not completely stop the symptoms, but they can help you manage them. If restless legs continue to disturb your sleep, speak to a healthcare professional rather than relying only on home remedies.

Bottom Line

Restless legs syndrome can make it difficult to relax and get a good night's sleep. Although the symptoms may be uncomfortable, the right treatment and simple lifestyle changes can help you manage them. If restless legs at night regularly disturb your sleep or affect your daily activities, consult a doctor to understand the cause and find the right treatment.

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