My mother had Type 2 diabetes. One afternoon she was home alone — I was away at school and my dad was at work. When the paramedics reached her, they had no way of knowing about her condition. They lost time they didn't have, and we lost her.

I built Halo so no other family learns the way I did how much can ride on a few seconds. A medical ID on her wrist could have told them what they needed to know the instant they walked in. That's the whole reason this exists — so the people you love are never a mystery in the moment that matters most.