I turned 50 almost 5 years ago - this year is "double nickles"!
Nowadays, I do think I've gotten more reflective generally and that this has impacted my photography in subtle ways.
For instance, I am shooting a lot of flowers and other flora (i.e. close-up and marco work) - whereas in the past I was more interested in "scenes" be it city street or landscapes. I believe I am also a more patient shooter - figuring that if I don't get "the shot" now - I'll get it later.
Most of all, I am shooting more generally than before - perhaps in anticipation of future leisure time. Thus seeing photography as an important endeavor I will want to pursue in even greater depth when I finally get to have more time on my hands than I know what to do with!