I actually recently began taking a B-complex. I am pretty physically active, which is why I began taking it, but I have noticed a definite improvement in how l

I actually recently began taking a B-complex. I am pretty physically active, which is why I began taking it, but I have noticed a definite improvement in how long I can work with a 'clear head'. I did a bit of research around it and also found some studies suggesting it helps long-term with cognitive functions. I suppose that is why redbull and a few other energy drinks throw a lot of B in their drinks. (It is the only supplement I take, so perhaps through my diet I am missing a certain vit-B, YMMV)