This maybe a bit rude but it is all in the name science.
Men have an early built in warning system for CAC, their penile member, because the penile arteries being a far extremity and on the small side they are the first to plaque up.
It it the canary in the coal mine.
However our medical community often glance over this as old aged, and in some cases it can be to do with the structures inside the penis getting older, but in most cases its is CAC.
I have been using Cialis for the last 7 years, up until now, I have been on my anti plaquing regimen for over a year now and finally I no longer need Cialis, I had realised it was getting stronger and this week, I have been able to harden for 30 minutes at a time easily and without effort and without Cialis, I feel this is a good breakthrough, but will be backing this up next year with a check on my CCA-IMT score to see how things are progressing.
Note to all men keep an eye on your in built early warning system.