Why do some people have higher alcohol tolerances than others?

Alcohol tolerance varies among individuals due to a combination of genetic, biological, and environmental factors. Genetics can influence how efficiently a person's body metabolizes alcohol, affecting the enzymes involved in alcohol breakdown. Additionally, regular consumption can lead to physiological adaptations in the brain and liver, resulting in increased tolerance over time. Factors such as body weight, age, and drinking habits also play a significant role in determining an individual's tolerance level.