I think that the better question is: "Why do you drink a bottle of wine each day?"
Do you truly enjoy and appreciate it if you drink it each day? If so, then go for it.
However, if the reason for drinking it daily is to intoxicate yourself, then you have reason for concern.
Any medicinal benefits quickly dissolve if the comsumption is excessive - IMO.
There are very few interests in my life that even come close to the passion that I have for wine, but I don't drink it every day. For me, it is one of Life's greatest treasures that is enjoyed to its fullest with good food, friends, and family. It would lose much of its allure if I consumed it daily.