Mark Ruffalo Strips Down & Bares His Hairy Chest — And Not Just Because He’s Sexy

Phew! Is it hot in here or is it just Mark Ruffalo? The stud took to Twitter to show off his hairy chest and he looks damn good! But this pic is for more than just the ladies, it's for a good cause. Mark Ruffalo's clothes are coming off, and it's not because he's turning into the Hulk. The hunky 47-year-old Avenger became a real-life hero when he posted a sexy shirtless photo to Twitter on Oct. 27th to raise awareness for a serious issue. What a good guy! We have the details on his special cause.

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Mark Ruffalo Shirtless
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Image Credit: Courtesy of Instagram

We love a man with some hair on his chest – almost as much as we love a man with a healthy chest. Mark wants to see more of that, so he posted a sexy pic on Twitter pointing to his nipple that says “Men get breast cancer too. I’m supporting @One4TheBoys #InTheNipOfTime campaign. Learn more: .”

The idea is that he wants to see more men getting checked for cancer. One For The Boys was founded in response to the fact that women have a ton of resources and support for cancer, but men have very few places to learn about the devastating disease. According to the One For The Boys website, they “aim to get men paying more attention to their bodies when something might be wrong.” We’re completely behind that!

The awareness video for the organization features other actors like Samuel L. Jackson, who also took to Twitter to spread the word by saying “Checkin’ Myself before I Wreck Myself!”, and Michael Douglas. Now they’ve got other hotties following suit, er, suit-less. Some of the sexy Saracens Rugby Club players have hopped on the trend, and that’s reason enough to check out the hashtag.

Hopefully all of the celebrity support will help bring attention to the very serious issue. We’ll take any excuse to see a handsome shirtless dude, but even better when it’s for a good cause. Keep up the good work, guys!

Hey HollywoodLifers, what do you think of Mark’s shirtless pic? Sound off below!

— Emy LaCroix