What does water do for you??

I thought I'd throw this question out today since it's been on my mind for a while and never posted about it, then I see 2 questions abou****er already!   Anyhow, I know water is important for hydration and digestion,etc., but my question is do you notice a difference on how you feel or if it makes a difference in your weight.  I've heard some people say that when they focus on losing weight, they up their water intake.  Does it really make a difference in weight loss or maintenance?? 

Thanks!
Melissa

I know for some water helps them feel full.  For me, I dehydrate very easily so I always have water and drink water.  I love the stuff!  I haven't heard tha****er helps to lose or maintain weight.