Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Blue blood may look alien, but it’s one of evolution’s most ...
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Why your hands or fingers turn blue: Understanding peripheral cyanosis, causes, and what it says about blood flow
Noticing your hands or fingers turning bluish in colour can be quite unsettling. This condition, known as peripheral cyanosis, occurs when oxygen-rich blood doesn’t reach your hands and feet ...
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