I'm on the opposite end of this as I'm pushing 40. It's like speed chess vs chess over snail mail. I tend to see all the way to the end of a problem within moments of hearing about it, already formulating solutions to edge cases 10 steps ahead while others seem to ask almost quaint questions about the first step. They spin very quickly while I don't appear to be doing anything at all, yet I often go completely around a problem. It generally takes me longer to explain how I arrived at the solution than it does to just solve it. But I've been trying to be more communicative, to work in a more communal way so that others can participate and I can count on them.
Of course nobody believes me about any of this and I've long given up trying to explain. I just quietly go about my work. It's frustrating though because I have no real leverage, no way to demonstrate my experience other than to just keep plodding odd glacially. I've utterly failed in any kind of management role but at the same time am having a hard time letting go of being a "hands on" dev in the trenches. I just hope that the level playing field of the internet dissolves agism before I'm faced with its ramifications.
An added bonus of brain age is being able to remember people's names. I never used to be able to do that, and I never tried to learn. It just happened one day. I guess I care more about people now and it seems like the least I can do is remember their fricken name.