One Tuesday, while drifting near the iron-rich docks of the , H₂O₂ bumped into a stray Ferrous Iron ion ( Fe2+cap F e raised to the 2 plus power

But H₂O₂ had a volatile secret. She was only one bad encounter away from a total meltdown.

The cell quietly folded in on itself, fading away to protect the neighboring tissue. H₂O₂ was gone, a victim of her own chemistry, leaving behind only a microscopic scar and a reminder that in the body, balance is the only thing standing between life and a chain reaction of ruin.