How much cardio have you done in one session?

[OMEGA]

I just did one hour straight of the revolving stair case this morning on a empty stomach ephedra and stimulant free..........

what thought to be the maximum amount of if your natural?

and what do you do?

 

[TerraNoble]

3 times a week..2-3 miles run..suffice for me....interval training is good to..