Doesn't he go to Valinor to die though? He doesn't live forever just because he was a ringbearer, he went for some healing and respite before moving on to the Doom of Hobbits. I always thought the Quest and the Wound caused him to 'die' young, he never healed, he left for Valinor, had a nice peaceful nap in Elvenlands, and died happy.
Yeh this feels a bit of a stretch for someone aging from early 20s to early 40s. A, some people have good genes. B, we tend to notice men’s aging with less weight(ymmv culturally). And, C he’s a millionaire movie star with access to the healthcare that comes with.
Never forget that Hollywood stars have access to the most expensive & exclusive skin care, trainers, health care, & even plastic surgery, the likes of which we grimy little Proudfeet will never even hear of. Check Cate B out too, she hasn’t aged an hour
I'm very very slightly younger than him and aged the same way. My beard grew in better as I got older and I got a better haircut, but other than a few grey hairs in the beard, a couple of extra pounds, and a slightly changed hairline I'm really similar to the kid in the picture from my boot camp graduation. I expect that to change pretty hard in the next couple of years when all my drinking and hedonism finally catches up to me.