What is the only effective method of lowering Blood Alcohol Concentration (BAC)?

The only effective method of lowering Blood Alcohol Concentration (BAC) is time. When a person consumes alcohol, their body processes it at a specific rate, typically about one standard drink per hour. This metabolism of alcohol is a biological process that can't be expedited or altered significantly by external means like hydration, metabolism boosters, or drugs such as aspirin.

Drinking water can help with hydration and may alleviate some symptoms of a hangover, but it does not influence the rate at which the liver processes alcohol. Similarly, while certain practices can influence metabolism, they do not significantly affect blood alcohol levels in a way that would lower BAC. Additionally, taking aspirin or any other medication will not impact how alcohol is metabolized by the body.

Thus, the only true method for reducing BAC effectively is simply waiting until the body has had enough time to metabolize the alcohol consumed.