Dr.Girlfriend
DIS Veteran
- Joined
- Aug 8, 2007
- Messages
- 2,369
Sorry, long month and the airport this morning.
I would expect that you took off a little dehydrated and did not hydrate much ir at all on the run? Litght headed and dizzy are the imediate signs that you needed to stop and hydrate about 30-45 minutes earlier. If you are not bringing liquids, look at all the various options you have and try bringing them with you. Look at your diet the night before. Any wine, etc? Salty food? Did you drink pre-run?
If it is a hydration issue, the real simple explanation is that your blood vessels dilate during high activity to allow more blood and nourishment to the muscle. It's hot and humid, therefore you sweat - a lot because normal sweat rates do not carry off the heat as well. Couple the two, more vessel volume and less volume of blood; you end up with not enough volume to the brain.
Ok enough hydration. Other factors could be at work. Keep a long of what you feel, when you feel it and the weather and activities. If you have this occur a few more times, then a visit to you GP is in order. Absent that, you are more than likely ok.
Hey howdy hey there, Coach

So, I'm trying to go back through all of the posts - what time do you recommend eating the last "large" meal before the race itself? This is also my first 1/2 and I've been training every other day, sometimes eat dinner about two hours before I go running. Obviously not too smart because once in awhile I feel a bit ill from it.
Do you have any tips on how to deal with our humidity here in Florida? I can run my first mile in 10:30 with no problems but after that, I start to have a hard time getting air...it's almost like the humidity is so thick, I can't take a deep breath. I end up slowing down to about 12:30 for the rest of the run (5 miles total in a run so far).
Thanks for any info
