I'm pretty sure those are mats in his hair.
http://www.youtube.com/watch?v=HXpYk7WGN5Y
He doesn't look like he smells very nice.
This seems like A cry for help. Doesn't it? He's obviously high. Some folks pour themselves into their work, when life at home sucks. When their life at work isn't fruitful either, this happens. Classic burnout. It's great that none of his "friends" are stepping in. I pray someones looking out for him.
Quick story: I was eating at A little hole in the wall , sometimes frequented by famous types. I was enjoying my soy chicken enchiladas & I notice some jackass is seated on the patio smoking A cigarette. The smoke is just blowing right inside the restaurant. I went outside to let this guy know what he was doing. I walk up behind him & say, "Excuse me, your cigarette smoke is blowing into the restaurant. It's killing mean, would you please put it out?". To my surprise, it's Joaquin Phoenix. He turns around and mutters something about being sorry, in A tone that sounded very wounded & fragile. His endearing, childlike apology was very sincere. When I sat back down, I felt bad. Like I had been mean to him, & I wasn't.