The minute you’re admitted into the hospital, you confront a disturbing paradox: Most hospitals aren’t particularly healthy places. As a patient, you’re likely to encounter toxic chemicals, eat lousy food, breathe unhealthy air and suffer stress triggered by an often-dismal and alienating environment. Even worse, you may find yourself at the mercy of drug-resistant “super bugs” or overworked staff members who make mistakes—all in a place that’s supposed to help you heal. It’s enough to make you sick. And sometimes it does.

Kids these days are growing up too fast -- in more ways than one. American girls are reaching puberty up to a year earlier than in previous generations, with some children showing signs of sexual development as young as age 3. In extreme cases, girls are budding breasts before they’ve even learned to read.

Researchers call this phenomenon "precocious puberty," which some say is on the rise. Forty-eight percent of African-American girls and 15 percent of Caucasian girls show physical signs of puberty by age 8, according to a study of 17,000 U.S. girls published in Pediatrics in 1997. In a subsequent study of more than 2,000 boys, lead author Marcia Herman-Giddens found that 38 percent of African-American boys and 30 percent of Caucasian boys showed signs of sexual development by age 8.

"Better things for better living -- through chemistry." From the 1940s to the 1980s, E.I. DuPont de Nemours and Co. wooed customers with that slogan, one of the most memorable in American advertising. But today, two groups of DuPont products developed during that era -- fluorotelomers and fluoropolymers -- are showing how chemical-dependent "better living" can come at a high price.

In the early 1990s, I was appointed to a three-person commission to decide on the suitability of a low-level radioactive waste facility in the Midwest. The facility was going to take wastes from nuclear power plants, as well as medical and scientific institutions. The commission was in operation for a couple of years and we debated the law and science up until the moment that the three of us voted unanimously to reject the site.