π¦ 8% of Your DNA Is Ancient Virus β And Without It, You Couldn't Be Born
Your genome is a graveyard. Almost a tenth of your DNA is the fossilised wreckage of retroviruses that infected your ancestors tens of millions of years ago. Some of it is junk. Some of it builds your placenta. One piece of it β right now β is helping your neurons talk to each other. The viruses never left. They became you.

