Final answer:
After smoking crack cocaine, the stimulant prevents nerve cells from taking up dopamine in the brain, leading to a "high." Chronic use can result in addiction, and abstention from the drug can cause withdrawal symptoms. Smoking crack cocaine also increases the risk of various health problems.
Step-by-step explanation:
When a person smokes crack cocaine, it acts as a stimulant by preventing nerve cells from taking up dopamine, a neurotransmitter, from the synapse. This results in high levels of dopamine being available to stimulate the pleasure centers of the brain, causing the person to experience a "high."
After the binge, dopamine levels are depleted in less than an hour, leaving the user in a pleasureless state and often craving more cocaine. Chronic use of crack cocaine can lead to addiction, and abstention from the drug can result in withdrawal symptoms such as depression and fatigue.
Additionally, smoking crack cocaine increases the risk of various health problems, including heart attack, stroke, cardiac arrhythmia, lung injury, and infectious diseases. It is important to note that the use of cocaine in any form can be extremely dangerous and harmful to one's health.