Stress and Illness

In chapter 12, continuing learning about stress, the textbook brought up stress and illness and I suddenly realized that I have seen an incident with this. I can remember every year when my mom is preparing for Thanksgiving dinner, or a big family gathering that will be hosted at our house, she becomes very stressed out and very irritable. She will get all of the preparing done and everything will be done nicely and the dinner will be great. However, I notice afterwards a couple days after my mom will get sick and complain of back pain. Now this could be anything but I thought it was interesting that it was brought up in the text that illness can be caused due to stress. These two symptoms are something that my mom goes through when she is stressed out and I'm sure many other do to.