I believe Yasmin is good for some, not good for others. I was on it for a month (3 weeks, really, since the last week is just sugar pills), and found myself dead tired every evening. I thought that maybe it was the work schedule I was on, but realized I've been working super hard before, and was certainly tired, but not as exhausted as I was. The week of sugar pills, I paid attention, and sure enough, my energy is getting back to normal. Not sure if it was the Yasmin or what, but I figured better safe than sorry - I'm going back to my original stuff, Triphasil.