What is Restless Legs Syndrome?

Restless Legs Syndrome (RLS), also known as Willis-Ekbom disease, is a neurological disorder characterized by an overwhelming and uncontrollable urge to move the legs. This urge typically arises due to uncomfortable sensations in the legs, which are described as creeping, burning, pulling, aching, or tingling. These sensations are temporarily relieved by moving the legs or walking, but return as soon as movement stops. Symptoms often worsen in the evening or when lying down and sitting for long periods, making sleep difficult and affecting overall quality of life [1].

Symptoms of Restless Legs Syndrome

The symptoms of RLS have distinct characteristics that make it recognizable. These symptoms include [1]:

• Uncomfortable sensations: The affected person may feel creeping, burning, pulling, aching, or tingling in the legs. These sensations may sometimes extend to the thighs, feet, or even the arms.
• Urge to move: These sensations trigger an overwhelming and irresistible urge to move the legs.
• Nocturnal worsening: Symptoms are worse in the evening or at night, especially when lying down, which hinders the ability to sleep and causes insomnia.
• Temporary relief with movement: Symptoms improve when walking or moving the legs, but this relief is temporary and lasts only as long as the movement continues.
• Sensitivity to rest: Symptoms appear or worsen when sitting or lying down for long periods, such as during travel or attending meetings.

Sleep deprivation resulting from this syndrome can lead to daytime sleepiness, anxiety, depression, confusion, and difficulty thinking clearly [1].

Potential Causes and Risk Factors

There is no single known cause for RLS in all cases. It is believed to be linked to a problem in how brain cells use the chemical dopamine, which helps with muscle movement [1]. The syndrome is also associated with other medical conditions and risk factors, including [1] [2]:

• Iron deficiency: Iron deficiency can cause anemia, which is associated with restless legs syndrome. To learn more about this link, you can visit Restless Legs Syndrome and Iron Deficiency (Arabic).
• Chronic diseases: Such as chronic kidney disease, diabetes, Parkinson's disease, and multiple sclerosis.
• Pregnancy: The syndrome may appear or worsen during pregnancy.
• Nutrient deficiencies: Such as magnesium or folate deficiency.
• Certain medications: Such as calcium channel blockers, lithium, or antipsychotics.
• Genetics: The syndrome is inherited in some families, especially when symptoms start at a young age.
• Stimulants: Caffeine, alcohol, and nicotine may make symptoms worse.

Diagnosis and Management

There is no specific test to diagnose RLS. Diagnosis is based primarily on the symptoms described by the patient, medical history, and a physical examination. The doctor may request blood tests to check for iron deficiency, anemia, or any other medical conditions that may cause similar symptoms. In some cases, sleep studies may be conducted to rule out other sleep disorders [1].

Although there is no cure for RLS, there are management options that help alleviate symptoms and improve quality of life. These options include [1]:

• Lifestyle changes: Such as getting enough sleep, maintaining a regular sleep schedule, using hot or cold compresses on the legs, performing gentle stretching exercises, massage, and taking warm baths. It is also recommended to avoid caffeine, alcohol, and tobacco.
• Medications: The doctor may prescribe medications to help control symptoms, such as pramipexole or ropinirole. In certain cases, low doses of opioids may be used for people who do not respond to other treatments. If there is an iron deficiency, iron replacement may be necessary.
• Treating underlying conditions: If the syndrome is caused by another medical condition, treating that condition can help alleviate symptoms.

It is important to consult a doctor if you are experiencing symptoms of RLS, especially if they are affecting your sleep or worsening. A doctor can help develop an appropriate treatment plan for your condition [1].

Medical references

• Restless legs syndrome
• Restless Legs