Yes, there are at least three social groups for aging issues. If you go to the top of this page (upper left where it says forums--and you need to be logged in to see it) and as DocJohn says, click on the topic to the right of that called Social Groups, you will find them.

One is called "Trying to Age Gracefully" one is "Ladies Age 50 or Better" and a third is "Women over 40".

They vary as to what page they are on as people post they move to the top the same as in forums. May have to search a bit.

There is one for teenagers. It is called "PC Teens" and a similar one is "Twentysomething" for ages 19-31. I don't know how current those are though.