I tend to generally run outside, however last night I wasn't able to make it to the gym until late, so I had to hit up the treadmill. Now, normally I run for about 1.5 miles outside in 100 degree humid weather. I have always been somewhat of a weak runner, so after that 1.5 miles, I can't move my legs. I then finish it off with a normal weight lifting workout. However since I was in an airconditioned space, I was somehow able to manage running for 30 minutes straight, even then I wasn't tired at all, I stopped because I got bored. Now, could it have been what I ate that gave me this unnatural energy? About 2 hours before the workout, I ate Pho. In this Pho, I had everything, tripe, beef, fatty brisket, tendon.. everything. The only orignal side effect I noticed was that I was very tired. All that MSG I suppose. So, was it the Pho? or was it the indoor treadmill environment?