How does caffeine affect heart rate?

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Jimmy

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How does caffeine affect heart rate?
« on: 05/04/2011 09:30:02 »
Jimmy asked the Naked Scientists:
   
how does caffeine affect peoples' heart rates?

What do you think?
« Last Edit: 05/04/2011 09:30:02 by _system »

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Offline Bill.D.Katt.

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How does caffeine affect heart rate?
« Reply #1 on: 09/04/2011 05:40:02 »
I know it is a central stimulant, and I believe it mimics the effects of epinephrine. On a more personal experience note, during extended aerobic activity it can make you think that you're ok, when in fact you have depleted your glucose stores. Here's Wikipedia link on caffeine: http://en.wikipedia.org/wiki/Caffeine#Effects_on_the_heart

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Offline seeker24

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How does caffeine affect heart rate?
« Reply #2 on: 09/04/2011 18:21:14 »
Caffein definitely affects heart rate. being a deivative of 1,3,7 trimethyl xantine, it has similar stimulant effect on the CNS as adrenalin does. it is the side effect that some people usually prefer like the wakefulness and alertness that comes with it
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