ABOUT THE HEROES HEALTH FUND Click here to watch a feature interview with John on Extra.com Over the last 50 years, man‐made chemicals and drugs of abuse have spread through the world at almost inconceivable rates. The final destination of many of these substances is the internal environment of the human body. The men and women who serve their communities as firefighters, police officers, paramedics and other “first responders” can be exposed to them at dangerously high levels. A growing body of research is raising concerns about the human effects of even low levels ......