Years ago I used to drink soda all of the time, a few cans a day when I was a teenager. Since then I've toned it down big time, with water as a replacement. Earlier today I needed to cram for an exam and purchased my first reb bull in years. I felt great, I had energy, I was focused and I didn't mind studying for math. Its like, the sun came out the moment I drank it. Recently I've been drinking a can of soda once or twice a week, with caffeine. But of course Starbucks has built an empire on caffeine so am wondering what the consensus is here. Is caffiene a regular part of your morning/day? Do you crave more? Do you crash? Obviously the energy drink route isn't a safe one and don't plan on drinking one again for another few years..but I have to admit, the caffeine made me feel joyful. btw, I remember in high school drinking a lot of caffeine as a regular part of my day....and remember having so much energy. My days would consist of waking up at 7am, going to school, messing around most days ditching class, hanging out with friends after school, then going home and still having enough energy to go out again with friends at night, even on a school night..though the downside was our nights would end wrapping up pretty late. Going to sleep at past Late Nite w/ Conan around 1:30am, ready to wake up for school at 7am all over again.. ..for the past year and so forth not taking much caffeine i've found myself more relaxed, staying in a lot of more. not to say thats a bad thing, but those good old' days were fun.