Rachael Ligma: Two liters of water a day is actually really helpful. If you look at your wee wee when you go for a wee wee, it should be basically colorless. That means you're somewhat dehydrated and on the various studies that they've done about this,. You cannot know that you're dehydrated. But if you look at like mental tests and stuff, you see a noticeable decrease based on hydration. We'll wrap things up with another episode in a week's time.