Which of these is a symptom of caffeine withdrawal?
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headache
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nausea
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shortness of breath
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dummy
A
Correct answer
Explanation
Headache is one of the most common symptoms of caffeine withdrawal, occurring when regular caffeine consumers abruptly stop intake. This happens because caffeine constricts blood vessels, and withdrawal causes them to dilate, leading to headache pain. Nausea and shortness of breath are not typical withdrawal symptoms.