Is there a specific type of drink that helps with dehydration?

Aside from water, drinks with added electrolytes can help to prevent dehydration. These beverages, commonly known as exercise or sports drinks, contain sodium, potassium, magnesium and calcium.

Electrolytes are a combination of minerals that are carried in the bloodstream and in other bodily fluids. Electrolytes carry an electric charge and affect, among other things, the amount of water in the body. The electrolytes move fluid swiftly through the body and into the muscles, and encourage proper quantities of fuel for different activities. When a person sweats, he loses electrolytes in addition to water, so it is important to drink beverages that restore electrolytes to the body.