Not very long, alcohol dehydrates your body.
They are very useful to our body as they are needed for growth and tissue repair
Not for a very long time.
Keeping your body hydrated is very important and drinking alcohol will cause dehydration. Avoid alcohol
Alcohol is useful to cleanse things. Alcohol can kill bacteria. Therefore it is often used in a disinfectant. Most of the time it's 70% alcohol 30% water
Rubbing alcohol is a very useful first aid product. It can be used for many different things. The shelf life of an open bottle of rubbing alcohol is usually a year, but check the use by date.
Swelling feet is usually caused by water tension and uneven blood flow throughout the body. Alcohol causes dehydration of the body, so it is very unlikely.
The chemical compound called alcohol is what makes you drunk and dizzy. The alcohol is very quickly metabolized in your body (even faster than sugar).
Micro-organisms can be useful in fighting back other illnesses that can kill you.
The human body metabolizes alcohol naturally. Some leaves the body through respiration and perspiration. However, most is broken down in the liver.
Alcohol is good for the body if consumed in moderation.
As an anesthetic and disinfectant? When was "back then?"