vaccination

1 entry tagged vaccination. All writing.

SEPTEMBER 26, 2026 Why Are Tattoos Permanent, and Where Does the Ink Actually Go? A tattoo needle deposits ink once, in seconds, and the picture stays for decades. The obvious explanation — the ink just sits inertly in your skin cells — is wrong. What actually holds it there is your immune system, running a relay that never stops, and part of the ink doesn't stay in the skin at all.

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