The "Ice Princess" and "Gossip Girl" star died from diabetes complications on Feb. 26, authorities have determined.

Michelle Trachtenberg was 39-years-old when she died in February. Her cause of death was revealed this week as diabetes mellitus. What is it?

Upon arriving at her unit, officers found a 39-year-old woman unconscious and unresponsive; EMS officials responded ... by inadequate control of glucose levels in a person's blood, affects around ...