The Unabomber reached out. Thanks, Ted, you're not nuts at all. Every generation has their own boogeyman. After September 11th, 2001 Osama Bin Laden was the most wanted and most feared man in the world, up until the raid on his compound that left him dead.
In addition to not drinking enough water, water can be lost through sweat, vomiting, diarrhea and using the restroom. Many problems may occur when you don't drink enough water, including heatstroke, seizures and possibly death. The first complication of not drinking enough water is dehydration. Symptoms of dehydration may include thirst, sticky or dry mouth, tongue, lips and skin as well as a mild headache.
Water also clears the body from pollutants, which also cause hair loss. Without proper hydration, hair and skin show evidence of dryness that can only be restored by drinking water. When a person is suffering from dehydration, hardly any of their water supply is getting to their hair.