Smart bracelet warning people with epilepsy and autism about the likelihood of developing a critical condition (from 15 minutes to 7 days). User receives a warning, monitors indications and keeps a diary of the state of the body using a mobile application on a smartphone. Family and friends get a person’s geolocation in case of trouble. The device allows people with epilepsy and autism to adapt and socialize and thereby save them from isolation and alienation from society.