Assuming you are in good health and there are no other problems, there is
really not much you can do, but that is okay.
In our youth-obsessed culture, we are often led to believe that being like a
twenty year old is the best way to be. The reality is that all men will
take longer to get an erection as they get older. The days of getting an
instant "hard on" whenever you see a doorknob are probably over.
As men get older, they require more direct stimulation, take longer to get an
erection, and often don't have as firm erections. However, this lack of speed
is not actually a shortcoming. Many men find, for example, that they have much
better orgasm control as they get older.
Most importantly, having an instant erection is not synonymous with good sex.
You have a world of knowledge and experience now. Almost no 20 year old can
match a 50 year old as a lover!
