Limit your alcohol intake
Alcohol causes and can worsen dehydration [9]. This happens because alcohol is a diuretic. A diuretic is any substance that increases the flow of urine so the body can get rid of excess water. Alcohol accelerates fluid removal from the renal system much faster than other liquids you take in do.
Taking alcohol on an empty stomach or not drinking enough water with alcohol can hasten its dehydrating effects. When consumed alcohol reaches the liver, it begins acting as a diuretic. It limits the amount of vasopressin the body makes. Vasopressin [10] is a hormone that functions as an antidiuretic. It promotes water retention by restricting the amount of urine produced in the kidneys.
When alcohol suppresses this hormone, your body begins to lose water much faster. You’ll often find yourself urinating more frequently than usual. The best way to prevent this from happening is to cut down your alcohol consumption.