Well that was a warm one!

First published Tuesday 25th May 2010

Hello, and welcome to the first entry in my new blog.

It will not have gone unnoticed by all those that attended last night's session that it was very warm in the dojo before the session had started, and much warmer once the session was over.

There is not much we can do to ventilate the dojo any more than we do, so it is down to each and every student to make sure that they take on enough fluids before, during, and after the session to replace what is being lost.

The dangers of dehydation are severe, as the following demonstrates:

1% - You'll feel thirsty

2% - You'll feel parched and have a loss of appetite, and unknown to you, you'll experience a 20% reduction in your capacity for exercise

4% - Tiredness, nausea and emotional instability will kick in

6% - You'll start to lose colour and will probably experience waves of acute nausea, agressiveness and irritability

10% - Very severe symptoms present themsleves and your thermo regulation systems breakdown, leaving you unable to control your body temperature

11% - Sometime soon you are going to need urgent medical attention to restore the chemical imbalances that are going on in your body. You need hydration quickly

20% - You have reached the limits of what your body can take

21% - That's it, you are off to that big drinking fountain in the sky

So next time you forget your drinks bottle and don't rush back to get it, consider the impact of just a 2% drop in hydration levels on your performance!

Sensei