Examlex
Discuss the importance of Mecca to the development of Arab unity.What role did Medina play? Was Islam a "religion of the desert"?
Smoking
The act of inhaling and exhaling the smoke of tobacco or a drug, which has various health risks including respiratory diseases, heart disease, and cancer.
Dopamine Neurons
Specialized nerve cells that produce and release dopamine, a neurotransmitter that plays key roles in motivation, reward, and movement.
Nicotine
A potent, addictive substance found in tobacco, affecting the nervous system by mimicking the neurotransmitter acetylcholine.
Overstimulated
A condition of having excessive stimulation, which can lead to feeling overwhelmed, anxious, or hyperactive.
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