Deb,
The problem with men is that we remember our abilities at the "high water mark" of our twenties.
It's not that we can't face our mortality...it's our decay that we can't face. The more people confront us with issues of decay and mortality, the more we tune them out.
Work in unison with his brother to encourage him to get tested.
For me, the first wake-up call came when I didn't qualify for the "preferred rate" on life insurance. No one said "you shouldn't do this", they simply said "you don't qualify for that rate anymore"...me? Not qualify? Well, I'll show you!!!
If you don't grow where you're planted, you'll never BLOOM - Will Rogers