Don't chew and pitch

whitesox.com:

About a month ago, John Danks began experiencing circulation problems in his left index finger. He didn’t know exactly how it happened, but he wanted to make sure one of his bad habits wasn’t a contributing factor. So, the White Sox lefty kicked his routine of chewing tobacco. Tobacco use can be known to have a hand in circulatory problems. Since that time, the circulation issue has subsided. And while Danks still isn’t sure whether his tobacco use had anything to do it, he isn’t taking any chances.