A coroner’s report notes that actor Hayden Panettiere had been in rehabilitation just weeks before she died from an accidental drug overdose. Although the details of her care are unknown, people addicted to drugs face a high risk of fatal overdose immediately after a period of sobriety. Experts say they may not realize their tolerance has dropped after stopping the drugs. And if they take the same amount of drugs they took before, it could overwhelm the body. Preliminary government data released