This buzz/light-headedness is definitely caused by low oxygen to the brain.
Ways of delaying it or minimizing it (and thus decreasing risk of BO):
- Increase blood pressure by carb loading, superhydrating, eating more salt, eating less garlic/onions
- Being colder during the dive
- Crunching the abs and 'making your face go red' as you push blood into your head
- Decreasing the amount of time spent in the last 8 meters
- Improving brain hypoxia tolerance by the ATRC test or other method
__________________
Eric Fattah
Canada
http://www.liquivision.ca
"I encourage you to be free in the way you measure your success. I don’t claim to know what it will be like to be in your position, but I know that when you leave here, grades will be handed out differently. Your ability to gauge your success will largely depend on how you perceive it. You can shape it, set it up, feel it, and define it. Allow competition to turn inward. Do not depend on awards, money, or other validations." -Jonny Moseley
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