Please tell us your age.
56
1. What type of bikes do 50+ folks ride?
A Surly long haul trucker.
2. Do you take any special supplements/vitamins/minerals as you have grown older?
Multi-vitamin since my 20s.
3. How much do you feel you have "slowed down" if any?
I've always been slow. 
4. How long have you been biking? New, around a while, biked all your life?
Gave up driving 4 years ago. My bike is my only form of transporation.
5. What type of biking do you do? Long rides, touring, short rec rides.
Commuting and touring.
6. How often do you bike? Your approximate annual mileage?
I ride 6-7 days a week. My annual mileage is about 6000miles.