Alcohol can cause Alzheimer's, diabetes, cancers and so on, which means it's poisonous for brain, liver and all digestive organs.
What I realized is alcohol is the most toxic for brain. It decreases the cognitive ability. If you drink even a cup of alcohol, it's like cutting your brain in a piece.
Actually, I started not drinking alcohol 4 months ago. I feel like my cognitive ability has been improved, and fat ratio collapsed from 20% to 16%. It motivates me!