Coffee Pee How Long?

[darkhope]

Hi guys,
Blah...um was wondering if anyone thought ahead and timed approx, how long it takes until coffee makes you wanna pee? For a .5L, I think from my bad memory it takes about from consumption, 1.5 hours to get the pee out, anyone else know approximately how ahead should i drink? I just don't want the effect to wear out before the exam...
Thanks!

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[NickNaylor]

What?

 

[liveoak]

What?

he wants to know how long it takes coffee to make you pee.

very rational and fantastic question.

 

[TheMightyBoosh]

Approximately 10 seconds before it makes you want to poop.

 

[JillEBean]

I wouldn't worry about it. You can pee right before you start, and you can pee again 70 minutes later. The micturition reflex occurs once about every 15 minutes, so you'll notice that you have to pee a maximum of four times during each section, which shouldn't bother you much if you're focused on the exam.

I drank a pot (6 cups) of tea 2-3 hours before, 2 cups of water within the hour before, and another 1-2 cups on each break, with no pee-related issues.