A stroke can leave a victim with several health complications, two such results could be inability to walk or paralysis on one side of the body. This is because a stroke affects your central nervous system, it starts in the brain and works it way down the rest of your body. Depending on the severity of the stroke you can be left disabled.
It usually depends on if the person actively stays hydrated. The recommended amount to drink is around 8 ounces, so depending on the size of the water bottle, it could vary.