Great video Gary. Biggest detriment in heavy weight training is lost endurance as I found about 25 years ago.
Now I only lift in my off winter season, lots of reps with low to medium weight. Haven't weight trained for 4 months now and my solo treework season is weight training enough.
I'm right behind you...... I'm pushing 60 years now and never felt better.
Diet doesn't effect me I can eat anything and not put weight on...
But this senior citizen could have avoided the XL pizza and pint of beer tonight though after taking this selfie