6. Lubricates joints.
7. Helps disolve mineral and other nutrients to make them accessible to the body.
Here is a chart that shows us for the average day what each of us should be consuming, however depending on exercise and the duration of exercise plus environmental conditions this will increase. This means for you active people and you athletes, keeping well hydrated is extremely important.
www.betterhealth.vic.gov.au Once you open this website, add water in their search section to get,
Water - a vital nutrient | Better Health Channel. Click on it to open it.
Here also on WebMd's site, they have information on first aid involving Heat Illness. Great info to have and know.