I have read for a long time now about how the gut is considered the 2nd brain. There is as much serotonin created in the gut as in the brain. When your gut gets out of whack then it can affect your moods, stress levels, sleep and probably more. I suffer with mood issues and medication doesn't quite fix it all. I committed to trying the Stress formula for a month or two in order to give it a fair shot. I am very consistent and take it first thing every morning. I am happy to report my general mood increased noticably. My sullen attitude appears to be gone. As of this writing I have taken it for 4 months and plan to continue. I've tried so many different things before this and this is the winner by far. I have told my doctor about it and my friends. I recommend this product.