How has he 'aged horribly'?
He's shrunk from being considerably larger so of course there would be some loose skin.
He's still has a lot of muscular size compared to the average person and doesn't look like someone who fried themselves sun tanning either.
He looks older than he is. He's very husky and is out of breath when he speaks. His face is extremely droopy. Looks like he had a stroke at 1 point or may possibly be suffering from Bells Palsy. He's choosing to try and keep size and is much bigger than someone his age should be. He also looks like he's had facial work and I wouldn't be surprised if he had surgery to remove his loose skin.