I wasn't stressed when I started taking Cortislim. I wanted to try it to see if it worked. It didn't. My coworker is still taking it, and she hasn't lost anything. It just makes her sleep better at night. The ingredient I was referring to is called vanadyl sufate (5mcg of vanadium). That is what made me tired 1 hour after taking it. I wouldn't recommend this product as it is costly. Yoga, deep breathing exercise, walking and relaxing music are great for stress, but I am not under stress. So I guess won't believe the advertising of most pills. They don't really work, diet, exercise and good old laughter work best.