Lastly, one of the most striking side effects of consumption of alcohol is on the hormones in the body. Alcohol straightaway reduces the production of body hormones, which results in a person becoming excessively vulnerable to infections and allergies. What's more, excessive alcohol in men can result in increased estrogen, a female hormone, which may lead to the development of female features such as enlarged breasts, and decreased body hair. Precisely, alcohol is one of the key causes for infertility in both men as well as women. However, this can be tagged under long term effects of alcohol on your body.