In 2001, Mark Ruffalo had a vivid dream that he had a brain tumor. Was it a premonition? Well, yes. He was diagnosed with a brain tumor and he chose to not disclose it to anyone. Since his wife was pregnant, it was only after the birth of his son that he made a public announcement. He took it all sportingly and after a successful surgery, he is proud to say that he’s a cancer survivor. Last year, he even he went shirtless in order to campaign and spread awareness about Breast cancer. He used twitter and Instagram extensively!