Caffeine alone won't dehydrate you, but it can be a contributing factor. I've experienced it before...
--ryan 2009/3/29 Kevin Callahan <[email protected]> > > On Mar 29, 2009, at 10:05 AM, Ryan Waldon wrote: > > Yes, as a competitive cyclist I'm quite familiar with caffeine and it's > benefits. It's not all free lunch though, caffeine has to be used carefully > in warm weather as it can contribute to severe dehydration. Dehydration can > more than offset any gains the caffeine net you. Also, because caffeine does > work, the IOC and WADA limit competition urine testing levels to 12 mcg/mL. > Exceed the limit and you're nicked... > > > interesting ... > I drink a couple of cups before my long runs ... but I also drink a lot of > water if I'm running more than an hour > > regarding dehydration: > > I asked Dr. Tarnopolsky. It turns out, he said, that you get habituated to > two of caffeine’s effects right away. Caffeine can make you urinate, but > only if you are not used to it. > > “Athletes do not get dehydrated from caffeine,” he added, “contrary to > popular myth.” > > And caffeine does increase the heart > rate<http://health.nytimes.com/health/guides/test/pulse/overview.html?inline=nyt-classifier> > and blood > pressure<http://health.nytimes.com/health/guides/test/blood-pressure/overview.html?inline=nyt-classifier> > in > people who are not regular uses. “But after three or four days, that > potentially negative effect is gone,” Dr. Tarnopolsky said. > > > > --ryan > > 2009/3/29 Kevin Callahan <[email protected]> > >> >> http://www.nytimes.com/2009/03/26/health/nutrition/26best.html?_r=1 >> >> _______________________________________________ >> OSX-Nutters mailing list | [email protected] >> http://lists.tit-wank.com/mailman/listinfo/osx-nutters >> List hosted at http://cat5.org/ >> > > _______________________________________________ > OSX-Nutters mailing list | [email protected] > http://lists.tit-wank.com/mailman/listinfo/osx-nutters > List hosted at http://cat5.org/ > > > > _______________________________________________ > OSX-Nutters mailing list | [email protected] > http://lists.tit-wank.com/mailman/listinfo/osx-nutters > List hosted at http://cat5.org/ >
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