Recently turned 40. Generally speaking, I don't see a big difference in the heal time of cuts or bruises. My joints on the other hand feel like they don't hold up like they used to. Recently spent a day helping a buddy cut down and mulch some dying trees on his property, made it through the day no problem. The next three days of recovery were rough though. I feel like a random day of labor like that when I was 30 wouldn't have had the same impact. I do weigh probably 20 lb more now but I'm also more physically active on a daily basis than I was when I was just a 30-year-old IT geek. That being said, seeing some of the responses here from the 60 and 70-year-olds gives me hope that it's all in my head.

I'm around 16. I can recover pretty quickly still, but definitely not as well as I could as a wee lad.

At a certain age you don't actually recover anymore. It's just added to the list of things you're slowly dying of.