Different people react differently to alcohol. That is because a variety of factors can influence your brain's response to alcohol. These factors include:
HOW MUCH AND HOW OFTEN YOU DRINK - The more you drink, the more vulnerable your brain is.
YOUR GENETIC BACKGROUND AND FAMILY HISTORY OF ALCOHOLISM - Certain ethnic populations can have stronger reactions to alcohol, and children of alcoholics are more likely to become alcoholics themselves.
YOUR PHYSICAL HEALTH - If you have liver or nutrition problems, the effects of alcohol will take longer to wear off.