If I had three beers a day every day it would be very bad for me. I would feel it every morning when I woke up. Even though beer may have some health benefits at the end of the day alcohol itself is a poison and bad for your body. And I say this as a devoted drinker of beers who has probably tried 200 different kinds.
Your immune system should take care of the after effects if you stick to 3 a day.