Why You Might Wake Up with Numb or Tingling Hands—and What to Do About It
Have you ever woken up with a numb or tingling sensation in your hands? If so, you're not alone—and in most cases, there's no need to panic.
The feeling of “pins and needles” can be uncomfortable, but on its own, it’s usually not dangerous. According to the Mayo Clinic, “Numbness alone isn’t usually associated with potentially dangerous disorders, such as strokes or tumors.”
In fact, this sensation is often temporary and easy to resolve.
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Common Causes
One of the most common reasons for hand numbness while sleeping is your sleeping position. If you’ve been lying on your hands or keeping them under your body, it can compress the nerves and reduce blood flow, leading to that numb, tingly feeling in the morning.
Repetitive hand movements—like typing, writing, or using tools—can also contribute. Over time, such activities may compress the nerves, potentially leading to carpal tunnel syndrome, a condition that affects the median nerve in the wrist. If left untreated, it may result in permanent nerve damage, and in some cases, surgery is required to relieve the pressure, according to Healthline.
Other Contributing Factors
- Vitamin B12 Deficiency: Common in vegans and vegetarians, a lack of B12 can lead to nerve damage, resulting in tingling sensations. B12 is found in meat, eggs, dairy, fortified cereals, and supplements.
- Electrolyte Imbalance: Low levels of calcium, potassium, or sodium—often due to dehydration, certain medications, or health conditions—can disrupt nerve signals and cause numbness.
- High Blood Sugar: People with long-term uncontrolled diabetes may experience diabetic neuropathy, which causes numbness, tingling, or burning in the hands and feet.
- Spinal Issues: Conditions such as a herniated disc or cervical spondylosis (neck arthritis) can compress nerves and lead to similar symptoms.
- Autoimmune Diseases & Circulatory Problems: Disorders like rheumatoid arthritis, poor blood circulation, and even benign growths such as ganglion cysts or certain infections may also contribute.
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When to See a Doctor
While occasional tingling or numbness is often harmless and resolves on its own, persistent symptoms shouldn’t be ignored. Chronic numbness could indicate a more serious underlying issue that requires medical attention.
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