[foo12bar]

I tried getting on it several times, I would feel energized at first but after a two or three days it would do the opposite and I would get very lethargic.

My body has a strange reaction to comonly used substances, though. For instance, even a single soda's worth of caffeine causes me to have an extreme 18-24 hour mania phase and then a two day crash afterwards. So, your mileage will definitely vary.

[fragmede]

Fun fact! that's most likely caused by your DNA having both the CYP1A2 gene and the ADORA2A gene. Means you can buy a bottle of soda and only drink a shot of it and get the same benefit as others without those genes set.