YES!!!! I am 58, but still love and prefer a sport bike over cruiser/tourer. Several years ago I was having issues "folding up" into the bike, my neck would get cramped up, and I would be sore and stiff after any extended ride. I was really concerned how much longer I could do it before the discomfort over ruled the enjoyment.
Then a friend who teaches yoga suggested I try her class. She was thrilled when I agreed (she said only one other man had attended, and he got sick halfway through and never came back :-)
Well, that was close to 6 months or so ago. Unless I am out of town on business or one of the MotoAmerica rounds I go twice a week.
It has made a huge improvement. Easily "fold up" to a crouch, no sore neck or back, can move around much better on bike, and can ride much longer at a time.
So I am a believer!!!!