Medicine, science, and public policy are driven by competing theories about how our bodies react to various substances. The U.S. Environmental Protection Agency (EPA) bases its decisions on a linear ...

I've been lurking and dipping in and out of this thread, and have a scattered assortment of thoughts and somewhat-relevant expertise that I've finally decided to express in words. My bona fides: I've ...

When environmental toxicologist Edward Calabrese in the School of Public Health and Health Sciences at the University of Massachusetts Amherst heard recently that the U.S. National Regulatory ...

Add Yahoo as a preferred source to see more of our stories on Google. A man jumping into freezing cold water. Healthy stress, like extreme temperatures, could help you add years to your life. When we ...