A new paper says they can detect sexism in a smile. 

A man’s true attitude towards the female sex can be detected according to how he smiles and chats to her, according to Jin Goh and Judith Hall of Northeastern University writing in Sex Roles. 

A new test that uses combinations of cells from a single donor’s blood can predict whether a new drug will cause a severe immune reaction in humans.

Drug discovery is an expensive, bureaucracy-laced process. Due to more restrictions requiring a lot more trials, drug discovery is an average 14 year process costing $2 billion and only 1 out of 5,000 drugs will get approved and out to the market. It's easy to imagine why once a company knows the product is not viable or safe, it is abandoned.

A Swiss teenager, recently returned home from a discotheque, came to the emergency department with classic sudden symptoms of stroke, only to be diagnosed with Lyme disease. The highly unusual case presentation was published in "Acute Lyme Neuroborreliosis with Transient Hemiparesis and Aphasia", Annals of Emergency Medicine.

Lighting technology is in a state of change. Incandescent bulbs, which have been around forever, have been banned in the United States but the heavily-subsidized replacement, compact fluorescent bulbs, run the risk of mercury poisoning if they break and have a glow that many don't find appealing. Light emitting diodes (LEDs) are likely the technology of choice in the mid-term future but they are expensive.

It was good to be a rampaging Mongol warlord circa 1200 A.D. - at least when it came to having a lot of sex and killing off your genetic rivals.

But he was not the only one. A new study finds that millions of Asian men share a common ancestral heritage with 11 people dating back 4,000 years ago. The study examined the male-specific Y chromosome, which is passed from father to son, in more than 5,000 Asian men belonging to 127 populations. Though most Y-chromosome types are very rare, the team discovered 11 types that were relatively common across the sample and studied their distributions and histories.