I have been studing thai boxing for ten years now and I have found that not having the right amount of fluid in your body will cause sickness,dehydration,and muscle shut down.

So for your body I would suggest that you try to get atleast two glasses of water per hour just to keep the fluids in your body.

Thanks for that, when I started I think I was drinking too much water which seemed to have some of the effects as too little, nausea being the major problem. Got a very difficult class tonight so will take your advice. :roll:

The amount you need to drink depends on your sweat rate, environmental conditions, intensity of the exercise and your toleration to fluid during exercise.

Drink 500 ml of water/sports drink at least 2 hours before the start of the class, continue to sip drinks thereafter and take any opportunities you can to take on board fluid during the class.