When Meth users end a run of Meth use, they experience "the Crash." Severe fatigue, anxiety, depression, and confusion occur, and Meth craving is often strong. Life can feel hopeless, recovery impossible. Much of the emotion that people feel during this period is caused by chemical changes in the brain, specifically a lack of dopamine. Fortunately, within 2-10 days some recovery of dopamine occurs, allowing the newly abstinent user to make it out of "the Crash." The body and brain begin to recover with proper sleep, nutrition, and exercise.