Should I stay or should I go? On the importance of aversive memories and the endogenous cannabinoid

Memory is not a simple box of souvenirs; it is also, and most importantly, a safety system for organisms. With the help of negative memories, known as "aversive" memories, we can avoid a threat that we have already confronted. Researchers have discovered that the cannabinoid receptors of the brain control these memories that are crucial for survival.