What is holistic medicine and why is it important?

When I initially did my training, chronic fatigue was thought to be a psychological issue. It wasn't thought to be a primary medical problem. Well, now we know that chronic fatigue syndrome and fibromyalgia actually related to brain inflammation. So this systems biology approach would look at how does someone actually get fibromyalgia? Is it related to nutritional deficiencies, gene expressions, chronic infections, trauma, psychological issues, sleep disturbances, gut disturbances, and how all these can be looked at to then individualize care for a person. Every single solitary person is looked as a whole. It's a true type of holistic medicine. It means it looks at everything, the entire whole. It doesn't just look at the heart or the lungs. It looks at the person's history. It looks at the person's personal beliefs, their culture they've come from, how their culture affects their perception of disease. All these things can play into an individual's personal health.