From all of the hysteria that has been generated in recent years — mostly by environmental groups about trace amounts of the plastic component bisphenol-A, or BPA, found in human urine — you might think it was sarin gas rather than a harmless chemical that's been used to line food cans without issue since the 1960s.

Drop everything you're doing and hear this: Your parents absolutely have a favorite child. Yes, your mom did tell you she loves all of you just the same. No, she didn't lie exactly, but she may have preferred your sibling over you, at times. And guess what? Experts say that's absolutely OK.

A potentially effective, but largely overlooked, approach to treating illness seeks to remove some of the guess work from patient care. Pharmacogenomics, which uses an individual's DNA, is a process that some doctors believe can better match a person with the most effective medication.

When Wall Street Journal reporter Serena Ng decides to clean house, she doesn't kid around. After she caught the folks running Jessica Alba's (dis)Honest Company lying through their veneers about what's in its "natural" products, she wasn't done. Now her spotlight is on another ethically-challenged operation.

Terminix, one of the largest pesticide companies in the world, agreed to pay $10 million in a case where a family of four became critically ill by exposure to methyl bromide, a very toxic pesticide that's banned in the United States.

In Hollywood, where having a therapist is chic, mental health disorders are a reality. But often times they don't get the frank-talk focus that they deserve. So any celebrity who opens up to the media about their issues to de-stigmatize them -- like Lady Gaga and Demi Lovato -- is A-OK in our book.

The FDA is now proposing new limits for arsenic in babies' rice cereal — 100 parts per billion. But of the samples now on the market that the agency tested, most were at, or very close to, that level already. So will the new regulation have any health effect? We doubt it.

A new report in the The Lancet suggests that individuals are more likely to be classified as obese than underweight, indicating that the world's population as a whole is getting heavier. But while these findings are grim, it's an important to recognize that the main metric -- body mass index -- should be interpreted with caution.

Some comments made by Dr. Ben Carson and Donald Trump during the GOP debates ignited controversy on a long-settled issue, but one that science deniers continue to raise: vaccine and autism in children. But a new study again shows that there is no link between vaccines and the condition.

A recent study, published online in the journal European Urology, reveals that men who had more frequent ejaculations had a statistically significant reduction in prostate cancer risk. Yes, we can almost hear the collective high-fives taking place among you guys right about now.