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Restless Legs: Get Your Ferritin Checked First

The urge to move the legs is worse at rest and worse in the evening

It is difficult to describe and easy to dismiss: an urge to move the legs, a crawling or fizzing that is not quite pain, arriving in the evening and worst when you finally sit still.

It wrecks sleep, it is common, and there is one thing worth doing before anything else.

Getting up and walking relieves it, which is part of the definition
Getting up and walking relieves it, which is part of the definition.

Get your ferritin checked

If you take one thing from this page, take this.

Iron is involved in the brain pathways implicated in restless legs, and low iron stores are a recognised contributor — including in people whose haemoglobin is perfectly normal, so a standard “no anaemia” result does not settle it.

The test is serum ferritin, it is routine, and clinical guidance recommends it as part of assessing restless legs. Where it is low, correcting it often produces a substantial improvement.

The Restless Legs Syndrome Foundation is a good source for the wider picture, and worth reading before an appointment so you know what to ask for.

Checking ferritin is the single most useful first step
Checking ferritin is the single most useful first step.

Is it actually restless legs?

Worth checking, because two much commoner things get called the same name and neither responds to the same measures.

Four features have to be present together. Missing one usually means something else is going on.

FeatureRestless legsWhat it is not
The sensationAn urge to move, hard to describeSharp pain suggests cramp or nerve
At restWorse the stiller you areCramps arrive without warning
On movingRelieved, at least while movingNeuropathy is not relieved by walking
Time of dayEvening and nightAll-day symptoms point elsewhere
The muscleFeels normal to touchA cramp is visibly hard
WhereUsually both legsOne leg only is worth investigating
Burning or numbness in the feet that walking does not relieve is a different problem and wants a different article.

Why it is worse at night

Two things stack up. The condition has a genuine daily rhythm, with symptoms reliably worse in the evening and the early part of the night regardless of when you go to bed. And the evening is when most people are finally sitting still.

That combination is why it is so destructive to sleep specifically. The urge peaks at exactly the hours you need to stay in one position, and the only reliable relief — getting up and walking — is the opposite of falling asleep.

It also explains why long car journeys, flights and cinema trips come up so often when people describe it. Prolonged stillness in the evening is the exact provoking combination.

What else can be driving it

  • Medications. Some antidepressants, sedating antihistamines and anti-nausea drugs can provoke or worsen it. Raise this with your prescriber rather than stopping anything.
  • Pregnancy, particularly the third trimester, where it is common and usually settles afterwards.
  • Kidney disease, which is worth excluding.
  • Caffeine and alcohol in the evening, which are the easiest things on this list to test yourself.
  • Family history, which is common and explains nothing you can act on, but is reassuring to know about.
Several common medications can worsen restless legs
Several common medications can worsen restless legs.

What helps without a prescription

Assuming iron and medications have been looked at, these are the levers left that do not need anybody else involved.

Modest measures, honestly described. None of these compares with correcting low iron where that is the driver.

MeasureWorth trying?Note
Cut evening caffeineYesFree, and the effect shows within days
Reduce evening alcoholYesA common and underestimated trigger
Moderate regular exerciseYesHelps; intense late exercise often does not
A consistent bedtimeYesWorks on the sleep loss more than the sensation
Stretching or a warm bath at nightWorth a tryHelps some people, not all
Magnesium supplementsUncertainPopular, weakly supported; harmless in normal doses
Track one change at a time for a fortnight. Changing five things at once tells you nothing.
Moderate regular exercise helps; late intense exercise often does not
Moderate regular exercise helps; late intense exercise often does not.

A note on medication worth knowing

If your doctor discusses medication, one term is worth being aware of: augmentation.

With one class of drug historically used for restless legs, symptoms can over time start earlier in the day, spread to the arms, and become more intense — caused by the treatment rather than the condition. Awareness of this has changed prescribing practice considerably.

That is a conversation for your prescriber, not for us. It is here because people rarely hear the word until it has already happened.

Caffeine and alcohol in the evening make symptoms worse for many people
Caffeine and alcohol in the evening make symptoms worse for many people.

Where we honestly fit

Barely, on the condition itself. The trial evidence for acupuncture in restless legs is insufficient — few studies, small, inconsistent — and we are not going to dress that up.

Where a conversation is reasonable is the wreckage it causes. Months of broken sleep produce their own problems, and acupuncture for sleep and insomnia and stress and anxiety set out what the evidence supports there, including the limits.

The evidence for acupuncture in restless legs is insufficient, and we say so
The evidence for acupuncture in restless legs is insufficient, and we say so.

When to see a doctor

See a doctor to have ferritin checked, to review medications that may be contributing, if symptoms affect one leg only, if there is weakness or numbness alongside, or if sleep loss is affecting your daily functioning. All of those are more useful than an appointment here.

Booking a session in Beverly

Acupuncture is $75 a session and everything is on our rates page. If sleep is the part you want help with, say so when you book.

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Frequently asked questions

What is restless legs syndrome?

An urge to move the legs, usually with an uncomfortable sensation that is hard to describe. Four features define it: the urge, worse at rest, relieved by moving, and worse in the evening or at night. All four, or it is probably something else.

Why does iron matter?

Iron is involved in the brain pathways implicated in restless legs, and low iron stores are a well-recognised contributor even without anaemia. Guidelines recommend checking serum ferritin, and treating when it is low often helps considerably.

How is it different from leg cramps?

Cramps are painful, sudden, and involve a visibly hard muscle that you can feel. Restless legs is an urge rather than a pain, it builds gradually, and moving relieves it rather than waiting it out.

Can medications make it worse?

Yes, and this is worth checking. Several common drug groups can provoke or worsen it, including some antidepressants, sedating antihistamines and anti-nausea medications. Do not stop anything yourself; raise it with your prescriber.

Does acupuncture help restless legs?

The evidence is insufficient to say so. The trials are few, small and inconsistent. If you have restless legs, a ferritin test and a medication review will do more for you than we will, and we would rather tell you that.

This article is general information, not medical advice. Acupuncture is intended to work alongside the care of your doctor, not to replace it. Please speak to a clinician about any new, severe or changing symptom.