Sleepiness: You are right- caffeine normally improves alertness, but there is only so much it can do. It is doubtful that sleepiness is related to coffee. Are you sleepy regardless of the coffee? Common causes of sleepiness are sleep apnea, insomnia, or insufficient sleep due to poor sleep hygeine or sleep-wake cycle derangements.
Answered 6/6/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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