Sometimes, when people don’t sleep well, they have dark circles under their eyes. If it’s just a little bit, that is fine. However, if that dark circle goes all the way down to the cheekbones, or if you see darkness moving towards the sides of the face, then it has gone beyond just poor sleep. The adrenal function is weakened. If we check the adrenal function lab work, we will probably see a correlation. In TCM, that dark complexion tells us that there is something more serious going on. It is not just water retention with a little bit of edema because you didn’t sleep well. It may be something more serious. A yellow complexion can be considered like a withered color, such as with anemia. During chemotherapy, across the board, all the blood numbers will be down and the skin may show a yellow color. Remember, it is not compared to other people, it is compared to yourself. If the change is significant and lasts for a long time, that must mean something. When going through cancer treatment, it is a good habit to take a look. Right now, we have smart phones. You can take a picture at any time. There is one tool I use for patients out of state; I do herbal consultations with them. Through email or text message, I ask for a picture of their face and tongue. This helps me have a better understanding of whether they have a deficiency or excess.