Willem Dafoe is mourning the loss of muscle definition, thick eyebrows and plump lips as he ages. The ‘Platoon’ star, who has starred in 150-plus movies and is due to turn 69 in July, also admitted his life no longer feels like an “open road”. Fitness fanatic Willem – who does a three-hour morning workout and has spent years doing yoga – told The Observer newspaper about what he feels he has “lost” as he gets older: “Not much, you know, maybe a little muscle tone and thickness of eyebrows and your lips get thinner. “No, I’m joking, but I’m not joking?” He added about the bleakness of ageing: “…