Drinking water alongside alcohol can help you stay better hydrated, but it does not directly reduce the level of alcohol in your bloodstream or make you less drunk. Alcohol is absorbed into your bloodstream through the walls of your stomach and small intestine, and it is metabolized by your liver at a relatively constant rate.
When you consume alcoholic beverages, they can cause dehydration because alcohol is a diuretic, meaning it increases urine production, leading to fluid loss. Dehydration can worsen the effects of alcohol, such as impairing cognitive function and causing hangover symptoms.
Drinking water between alcoholic beverages or alongside them can help maintain hydration and potentially lessen the severity of a hangover the next day. It may also slow down the rate at which you consume alcohol, giving your body more time to metabolize the alcohol, but it won't affect how drunk you become in the short term.
If you want to reduce the effects of alcohol or sober up, the only way is to wait for your body to metabolize the alcohol naturally. This process takes time, and there are no quick fixes or shortcuts to sober up faster. It's essential to drink alcohol responsibly, know your limits, and avoid driving or engaging in any activities that require alertness if you've been drinking.