Those NO2 drinks have been popular for a few years now. I just got back to weightlifting seriously again after a few years off. I got into jogging and became the kind of guy I always hated when I was weightlifting...you know...one of those fitness guys that my bodybuilder buddies used to call "squids". I just got bored with weightlifting.
I used to be 225 at 5'10 inches with a 400 pound squat. Not bad for a guy that genetically is more suited to playing tennis. But after laying off the weights and jogging I got down to 165 and puny. Just looking at a 45 pound plate scared me.
Due to my hormone/CFS issues, or whatever is going on with me, I found out that I would have more energy if I lifted weights, and laid off the aerobics. So I went to Wal-Mart and found one of those NO2 pre-workout drinks. I bought it just for the caffeine and glycine which I thought would give me a little more energy when I worked out.
The result? I felt pretty darn good! I couldn't believe it. It wasn't just a caffeine like energy. It was a more natural energy feeling. I don't know squat about NO2 or if it's increasing it....probably not...but I feel better after taking it. I used to be heavy into energy drinks, and none of them made me feel this good.
I read something somewhere about NO2 acting as a neurotransmitter for hormonal processes. Maybe that's what's happening. Who knows?
The odd thing is that it has creatine, and creatine makes me depressed. I never used to have that reaction, but as of two years ago whenever I took creatine I would get a heavy depression. I read somewhere that it could be due to the creatine causing dehydration. So I drink lots of water with the NO2 drink, and it seems to circumvent the depression.