I was very skeptical about this product even though it was recommended by a friend. I was very surprised by the flavor which I enjoy very much. Then after about one week of drinking one cup a day my husband surprised me by saying that I seemed so content lately and not stressed when I came home from work. I thought it can't be the mushrooms. I wasn't able to drink the coffee for two days and then I was able to sit down and enjoy a cup and that's when I noticed the difference. It just seem to make me calmer and to actually be pleased with myself. I also didn't seemed to get so stressed. I don't know if this is possible and if it really is the mushrooms but everyone in my family is going to get a starter pak for Christmas. Thank you.