Ever wondered why “pins and needles” happens? That tingling sensation is your nervous system recovering after temporary pressure reduces blood flow to a limb. Once circulation returns, sensory nerves begin firing again — sometimes all at once — creating the prickling feeling you notice. In most cases, it’s harmless and fades within minutes. However, if numbness or tingling occurs without pressure or persists, it’s best to seek medical advice. | Johns Hopkins Aramco Healthcare
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