I took rhodiola a couple of times this week with some pretty good results. The first time worked like a charm and got rid of my headaches and I was able to concentrate on my work. Of course, I still took brain rest periodically during the work day. However on the third day, taking one dose a day, it stopped working and my headache came back and my concentration was lacking. But then, that was Friday and after a full week of work, you really can't expect full effort from a tired brain.

The rhodiola I took also had some caffeine in it, just enough to give myself a kick but not overly so.