I found an entertaining blog called Lord of the Drinks.
Recent headline with an excerpt from the story:
Ulysses S. Grant, a drunken fighting machine from American history
While historians rank him as one of the worst American presidents ever, his military achievements are quite impressive. Just as impressive was his legacy as a heavy drinker. Grant was many times labeled as an alcoholic, although he usually didn’t need ‘Dutch courage’ in battle. When there were no wars to be fought, Grant had just one hobby to keep him from getting bored: drinking.
Another interesting headline:
How Mahatma Gandhi killed thousands of Indians with his call for prohibition