PREVIEW

The 42-year-old actor shared the surprising news during an appearance on Thursday's episode of the Today Show. As he discussed working with the show to set up a blood drive, Eisenberg explained he has now gone one step further in a bid to help others. "I just have so much blood in me, and I feel like I should spill it," he joked. "I really like doing it, and I don't know why.". He added, "I'm actually donating my kidney in six weeks. I really am.".