Ok, I'm about to get all "Bill Nye" on you but you're going to appreciate the info. Have you ever heard the word viscosity? Probably not unless you're in motorsports but this term is the simplest way to describe hydration and dehydration.
Dehydration increases blood viscosity. By definition, blood viscosity is a measure of how concentrated the blood is and is a measure of hydration status. So if you're dehydrated that means there is less water in the blood which makes it harder for blood and minerals to flow throughout the entire body depriving much needed oxygen to critical organs.
Now the video below demonstrates exactly how viscosity works. You'll notice that in the left tube the ball drops and moves very slowly. That tube demonstrates a dehydrated body that has trouble allowing minerals and nutrients to flow - pay special attention to how slow the ball drops!
The tube on the right though demonstrates a hydrated body, with the ball flowing fast and smooth. This is the ideal state of viscosity that athletes should strive towards. A well hydrated body will help you to perform better and recover faster.
Enjoy the video and shoot us any of your questions about hydration on our Facebook page and I'll be happy to answer them for you!