Every day, your brain makes thousands of decisions. One of the most important decisions it makes is which moments to keep and which ones to let go. You may remember what you ate this morning, but that memory will fade soon. Meanwhile, something exciting, scary, or surprising can stay with you for years.
Scientists have long wondered how the brain makes these choices. Recent research shows that the brain uses a special mechanism to mark important events to be saved for the long term. In this gallery, we take a look at the inner workings of the brain and the deep-seated mechanisms of memory. Interested? Click to know more.