The prevailing theory i heard was alcohol uses water as it metabolizes in your system. As such you wake up dehydrated. Drinking fluids before you black out is recommended. However since dehydration really messes with your elecrolytes too this is only a partial solution.
The co2 gas in your beverage rapidly dissolves into the atmosphere once its no longer under pressure. There really isnt enough to affect your physiology. Your body would respond by breathing more rapidly to restore the 02/co2 balance in your lung. Fun fact, every time you exhale about 40% of the co2 in your lungs is still there. So breathing in more isnt a huge deal.
Edit: being fromthe austin area, i always wondered why they bother with the "p" in pflugerville
The co2 gas in your beverage rapidly dissolves into the atmosphere once its no longer under pressure. There really isnt enough to affect your physiology. Your body would respond by breathing more rapidly to restore the 02/co2 balance in your lung. Fun fact, every time you exhale about 40% of the co2 in your lungs is still there. So breathing in more isnt a huge deal.
Edit: being fromthe austin area, i always wondered why they bother with the "p" in pflugerville