You know Chris Rock, right? Funny guy, not afraid to be outspoken, string of hit movies under his belt? Well, maybe you don’t know him as well as you think you do. In fact, even Rock himself was unaware of the condition he’d had for years – one that he only learned of in his mid-50s. So, the star finally got some serious help for the first time. And it appears that the diagnosis has had life-altering effects for the famous joker.