Re: Andropause
I don't know.
There's certainly nothing as obvious as the female 'change' and I would tend to the view that much of it 'is all in the mind'.
I am fortunate in having a husband who has always been fit, still referees rugby every Saturday (and any other day he can sneak off) and receives plaudits from junior and colts teams for his fitness. He has also taken to going to the gym and is actually in pretty good shape - he's even getting pecs!
If you think old, you easily become old
Age is just a number - if you are fortunate enough to have good health, enjoy it - this is it, not a dress rehearsal