Or simply the stationary bike was on a COOLER part of the gym:-))) I am not kidding. The outside temperature has much bigger effect on your sweating rate, than anything else.

But it is only my 2 cent (and my experience).

P.S.: I do not want to hurt anybody's feeling, so I do not want to accuse Dr. Phil or Oprah, but emotions can change your body temperature as much as a nice cardio. For example when I see on tv, that ...... ok, this is for the "Everything else" thread

Eva