For nearly two decades, Brett Favre was the NFL’s version of the Energizer Bunny. He broke his fingers, sprained his ankles, and took blow after blow, but none of that was able to keep him out of action. His streak of 321 consecutive starts is a testament to that. But behind that superhuman feat was a dark truth that nearly cost him his life. “Brett Favre played 297 consecutive games. Starts. Including 321 with the playoffs in,” entrepreneur Sha…