Oldness can come in big lurches. I suddenly went from being carded for alcohol every time to maybe 2 times a year. During the last 20 months I added 1:30 to my mile time, my cognitive activities decreased significantly, I lost a 3" patch of hair off the top of my head and the rest thinned 75%. I have to stop myself from telling my adult kid to make sure they're getting regular sleep whenever they tell me they've been up late studying. I haven't been asked by a stranger if I have any weed for several years.