What a brilliant post @unshakeable. Lots of information I had no idea about and it's very interesting indeed.

we shed our skin, losing about 30,000-40,000 skin cells per hour, or around 1,000,000 per day

That is crazy! I liked how you added this in before explaining how the ink is permanently held under our skins layer. It grabbed my attention right before you delivered the goods.

Honestly, fantastic post. You nailed the formatting and style too.