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A 50-year-old member asked:

Why don't sugar and caffeine keep me awake?

1 doctor answer2 doctors weighed in
Dr. Jessica Langenhan
Psychiatry 16 years experience
Stimulant effects: Some people are less sensitive to the effects of sugar and/or caffeine. Also, sugar, in its simple forms (such as that present in pastries or candy) usually causes an energy spike followed by fatigue shortly afterwards. If caffeine is consumed routinely, people can become tolerant of its stimulating properties.

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Last updated May 12, 2018

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