Fortunately, there is actually significant evidence on the benefits of certain healthy lifestyle changes. Similarly, there is an increasing amount of research in the field of natural solutions that shows how the earth's offerings can support our bodies and minds. These can and should regularly integrate with modern medicine to improve quality of life, reduce healthcare costs, and help sustain our planet.
I have heard proponents of herbs, supplements, and essential oils claim that they work for everything. I do not feel this is true. I have also been in medicine long enough to see occasional adverse effects of people trying to "treat" their healthy conditions naturally, either on their own or with assistance of a practitioner who does not have the proper knowledge and experience to diagnose and treat. Some who have attempted to do so, through inappropriate care or by delaying appropriate medical care, have suffered organ failure, disease progression, and even death. Working with a qualified healthcare professional is strongly advised when implementing lifestyle and other natural solutions, and ideally, that professional has experience with these solutions.