text: There are many risks from not knowing exactly what the student is feeling. They could be feeling anxious, depressed or even scared. Anxiety and depression are two major and risky mental health problems. People who have it may not want to talk about it or even share that they have it. With thus facial recognition, they will be detected as sad or scared and you can be able to get them the help they deserve and need. We have many muscles in our face and all of them can identify in the categories of sad or scared. As the author includes in the passage, in papragraph 3, "The process begins when the computer constructs a 3-D computer model of the face; all 44 muscles in the model must move like human muscles. Movement of one or more muscles is called an "action unit.""