Persistent use of drugs such as cocaine and morphine is thought to ... of individual neurons in the brains of mice going ...

Bogota — Cocaine "is no worse than whiskey" and is only illegal because it comes from Latin America, said Colombian President Gustavo Petro during a live broadcast of a government meeting.

Cocaine is a powerful stimulant drug derived ... It involves both physical dependence, marked by withdrawal symptoms, and psychological dependence, which includes intense cravings and loss of ...