Final answer:
Withdrawal is the physical illness experienced when reducing or stopping substance use, characterized by a range of symptoms due to substance dependence.
Explanation:
Withdrawal is the term that describes the physical illness a person experiences when reducing or stopping substance use. It involves a range of symptoms that occur when the body has become dependent on a substance and then goes without it.
These symptoms can vary depending on the substance but may include physical pain, nausea, anxiety, and cravings. Tolerance, withdrawal, and addiction are interconnected concepts in substance use disorders.
Learn more about Substance Use Disorders here:
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