A member asked:

Can caffeine actually make some people tired instead of rejuvenated?

A doctor has provided 1 answer

Yes: Caffeine can dehydrate cells and make you feel tired instead of rejuvenated. Also it tends to stimulate cells including cardiac muscle cells so heart will beat very fast and people begin feeling fatigued.

Answered 2/28/2013

5.3k views

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Related Questions

A member asked:

Anybody else get similar twitches with fatigue and xs caffeine?

A doctor has provided 1 answer