A growing field in the public health realm, environmental medicine, explores how factors within both the natural and man-made environment affect human health. It looks at factors such as ultraviolet light, chemical preservatives in foods, chemical toxins, environmental pollution in air and water, and numerous other elements play a role in causing disease. Environmental medicine also looks at the role of the environment in mediating disease and adverse health conditions. As our country and the world has grown more toxic and reliant upon chemicals, people have become more concerned about the effects on human health, making the field of environmental medicine increasingly important. Featuring host Martin Sheen, the In Focus TV program will inform TV audiences across America about this interesting and evolving field.

The In Focus Martin Sheen show, which airs on many public television stations across the country, including many affiliated with PBS, examines important and timely subjects across American culture and worldwide. It takes a look at meaningful topics that affect households, families, businesses, consumers and industries throughout the country. The program examines stories, developments and trends in various areas of American life, including public health, medicine, environmental issues, family matters, various economic and financial issues, and far more.

In Focus with Martin Sheen will inform viewers about the growing evidence of environmental factors causing health problems, and inform them about some of the solutions to these problems that show promise. Manmade smog has become a major concern in large cities across America and around the world, causing respiratory problems for millions of people. It will look at issues such as chemical injuries caused by products. Most of the chemical compounds used in cleaning products, beauty products and other products commonly found around the house can cause great harm if ingested. Some products can seriously harm people if they touch the skin. The role of food preservatives in causing health problems has been increasingly debated in recent years. Concerns about potential health risks from chemicals have led to a rapid rise in popularity for organic products. Many companies try to appeal to health-conscious consumers by touting the organic nature of their products.

In Focus will look at some of the other fields that have emerged in recent decades to counteract the harmful effects of environmental factors. It will educate viewers about chelation therapy, which involves the use of different substances to detoxify the body of metals and other substances. In Focus will discuss other topics like nutrition therapy and orthomolecular medicine as well.