Amin Zayani has had type 1 diabetes for 11 years and relies on daily insulin injections. A couple of years ago he had a bad experience when his insulin suddenly seemed to stop working. He discovered that the cause was that, unknown to him, his insulin had frozen in the refrigerator, ruining its potency. To keep this from happening again, he set out to devise a solution: the MedAngel One app, a simple way to monitor insulin temperature. Read more