I completely believe processing emotions can improve physical health. In our culture, we tend to view physical ailments as problems to be solved with medication. It's becoming more popular to look at diet, but even then we're not always getting to the root cause. I recently read an article about how diet can affect migraines, but only when somebody is under stress. Meaning that certain foods are more likely to cause a migraine when someone is stressed, but if you remove the stress, they can eat anything and not get a migraine. I've always suspected that I'm particularly sensitive to emotions affecting me physically. Everyone seems to have a certain physical weakness, a way that your body tells you it's not happy. It could be digestive, psoriasis, migraines/headaches, acne, too much/too little appetite, being susceptible to the flu, etc. For me, it's my stomach. If I'm too lost in my thoughts or ignoring my emotions and instincts, my stomach will find a way to tell me. I can even give you a personal example that drives this point home.