Bisphenol A (BPA) in high quantity can harm people, just like almost anything. BPA has been labeled a concern by some because of its ability to be an endocrine disruptor that hijacks the normal responses of hormones. 

While toxicology studies have shown that only very high doses of this chemical affect exposed animals — doses as high as 50 mg/kg/day - by focusing on numerous endpoints a new review says it can find effects not detected in peer-reviewed toxicology studies. The authors of a new paper conclude that endocrine disruptors need to be studied at much lower doses.

Super-Typhoon Haiyan is bringing the maximum sustained winds of a Category 5 hurricane - 195 MPH, making it among the strongest storms ever recorded. Warnings are in effect for the Philippines and Micronesia as Haiyan moves west.

Brian McNoldy, a Senior Research Associate at the University of Miami's Rosenstiel School of Marine and Atmospheric Science in Miami, Fla. noted that on the morning (EST) of Nov. 7, "Haiyan has achieved tropical cyclone perfection. It is now estimated at 165kts (190mph), with an 8.0 on the Dvorak scale... the highest possible value."

Warnings in the Philippines have been raise throughout much of the country. In Luzon:

Narcissus, the physically flawless character of Greek mythology, wound up falling in love with his own reflection. It isn't a good role model, and for that reason it is an insult thrown around by amateur therapists even more often than "he has Asperberger's".

 In clinical terms, narcissism comprises at least two largely distinct patterns of behavior associated with different traits: Vulnerable narcissism is marked by excessive self-absorption, introversion and over-sensitivity, while grandiose narcissism is characterized by an extroverted, self-aggrandizing, domineering and flamboyant interpersonal style. 

From gluten allergy and hypoallergenic pets, to avoiding the flu shot because of an egg allergy, there are a lot of common myths and misconceptions about allergies.

The power of the Internet is such that anyone selling a product or a world view that relies on deception or doubt has a ready outlet - while many are just kooky or harmless, some of the misconceptions can be damaging to public health if vaccinations are skipped and extreme dietary avoidances are taken.  An astonishing 72 percent of users turn to Internet sources of suspect value for health information.

A bio patch  bone-regeneration kit uses a collagen platform seeded with particles containing the genes needed for producing bone to regenerate missing or damaged bone - basically, it puts DNA into a nano-sized particle that delivers bone-producing instructions directly into cells.

In experiments, the gene-encoding bio patch successfully regrew bone fully enough to cover skull wounds in test animals. It also stimulated new growth in human bone marrow stromal cells in lab experiments.

Cocaine addicts may become trapped in drug binges not because they are always seeking euphoric highs but rather to avoid emotional lows, says a study in Psychopharmacology.

Rutgers neuroscientists Professor Mark West and doctoral student David Barker dispute that drug addiction occurs because users are always going after the 'high'. Their animal studies found that the initial positive feelings of intoxication are short lived and are quickly replaced by negative emotional responses when drug levels begin to fall. 

If these animal models are a mirror into human addiction, then addicts who learned to use drugs to either achieve a positive emotional state or to relieve a negative one are vulnerable to situations that trigger either behavior.