In addition to the SOS mentioned above, I noticed much more interest in life and work after HRT. This stuff is great. You should be aware that as test levels are increasing you feel like King Kong.
Any type of cardio you enjoy doing is the best. With that said, it is important to pick something you can do low to med intensity with about 45 - 60 min in duration. Personally I like the bike and cross trainer becasuse you are saving your knees. Hopefully you are in this for the long haul. Let...
Your dad should have his test checked. Low test is a common problem today with older men. Most doctors are blind to this fact. Find an aggressive doc and look into HRT. It is virtually impossible to keep fat levels down when test levels are low. It seems everything across the board gets better...