U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Environmental Factor

Environmental Factor

Your Online Source for NIEHS News

June 2016

Environmental medicine shows promise for reducing chronic disease

A trio of researchers highlighted the role of environmental medicine in reducing health problems, such as diabetes, obesity, and chronic diseases.

At a May 9 seminar, a trio of researchers highlighted how environmental medicine can help reduce leading health problems, including diabetes, obesity, and other chronic diseases.

“Obesity, Electrosensitivity, Mycotoxicosis, and the Clinical Practice of Medicine,” hosted by the NIEHS Office of the Director, focused on the role of chemicals, mold, food, electromagnetic energy, and other environmental factors in making people sick, and how removing triggers from a person’s environment can improve health. This patient-centered, cause-oriented model for diagnosing, treating, and preventing chronic diseases is known as environmental medicine.

Lisa Nagy, M.D., director of the Environmental Health Center of Martha’s Vineyard, shared her personal story of surviving multiple chemical sensitivities and discussed her work teaching, practicing, and advocating for environmental medicine. Magda Havas, Ph.D., from Trent University in Ontario, and William Meggs, M.D., Ph.D., from East Carolina University, presented specific examples from their own practices.

Environmental triggers to chronic diseases

“I practice emergency medicine and get a ringside seat to what is really going on in the medical world,” Meggs said in the first presentation. He noted that increases in suicide attempts, diabetes, and obesity rates were health problems that may be related to environmental factors.

Meggs said that one-third of the U.S. population is obese, and something needs to be done to address this significant public health threat. He indicated that one way to accomplish this would be to limit exposure to environmental chemicals.

Discussing the differences between the two approaches he practices — conventional and environmental medicine — Meggs said both have value, but an environmental approach, in which the focus is on taking away things that are shown to cause harm, may be more beneficial for certain health concerns. Factors besides chemicals, such as nutrition and genetics, also play a role, he said.


Havas has dedicated much of her career to researching and teaching about the impact of chemicals, electricity, and wireless devices on human health, wildlife, and nature. She presented case studies to illustrate the health benefits of removing or reducing electromagnetic fields in a person’s day-to-day environment.

Havas showed a short video of a person with multiple sclerosis. Hand control improved after a filter to block intermediate frequencies was installed on the plasma TV in the individual’s home. In another example, a diabetic individual experienced a higher decrease in blood sugar from running outside compared with running on an electronic treadmill. Havas asserted that the electromagnetic field of the treadmill made the difference.

“This is all good news,” she said. “If you reduce your exposure, you can actually recover.” She listed simple steps to reducing electromagnetic fields exposures, such as not carrying mobile phones in shirt or pants pockets, but rather keeping devices away from the body.

Mold exposures and environmental medicine

Nagy, who serves as the government liaison for the American Academy of Environmental Medicine, closed the seminar by focusing on the role of mold and other environmental factors in illnesses and chemical sensitivity.

She shared her own journey of finding a solution to the chemical and electrical sensitivity she developed after living in a house that had mold. Nagy said molds can produce measurable toxins, and some of these mycotoxins can harm the body, including, as in her case, the adrenal system.

As a physician, Nagy stressed the importance of listening to patients to discover the underlying cause of their problem. “Environmental medicine is a comprehensive approach that deals with all aspects of why we get sick,” she said. “People need to know that an environmental medicine approach is available as a treatment option.”

(Robin Mackar is the news director in the NIEHS Office of Communications and Public Liaison and a frequent contributor to the Environmental Factor.)

Back To Top