okay... so as i've been told to do...
i've been running first thing in the morning on an empty stomach..
this morning when i got to the gym, i weighed myself, weighing in at 246 lbs..
i did a good 40 minutes of cardio and reached my target heartrate from the machine (131), and then i weighed myself again, weighing in at 251.
what happened? did i really drink 5 lbs of water?