A new interactive map details the histories of genetic mixing between each of the 95 populations across Europe, Africa, Asia and South America spanning the last four millennia.
For the first time, scientists have identified a gene linking the thickness of the grey matter in the brain to intelligence, which may help scientists understand biological mechanisms behind some forms of intellectual impairment.
CVS Caremark is kicking the habit of selling tobacco products at its more than 7,600 drugstores nationwide as it focuses more on providing health care. The nation's second-largest drugstore chain said Wednesday that it will phase out cigarettes, cigars and chewing tobacco by Oct. 1, a move that will cost about $2 billion in annual revenue.
A scientific study found that even moderately heavy drinking impairs cognition in middle-aged men. Middle-aged men imbibing more than 2.5 drinks a day saw faster decline in all cognitive areas of their brains over a decade. Indeed, middle-aged men putting back 2.5-plus daily, accumulated almost six (5.7) years of extra cognitive aging.
People who enjoy life maintain better physical function in their daily activities and keep up faster walking speeds as they age, compared with people who enjoy life less, according to a new study.
Exposing skin to sunlight may help to reduce blood pressure by altering levels of the small messenger molecule nitric oxide (NO) in the skin and blood, thus cutting the risk of heart attack and stroke, a new study says.
Whether it's a mug full of fresh-brewed coffee, a cup of hot tea, or a can of soda, consuming caffeine is the energy boost of choice for millions who want to wake up or stay up. Now, researchers at Johns Hopkins University have found another use for the popular stimulant: memory enhancer.
A comparison of Y chromosomes in eight African and eight European men dispels the common notion that the Y‘s genes are mostly unimportant and that the chromosome is destined to dwindle and disappear.
The partial model for Obamacare—Massachusetts’ near-universal health care program, adopted in 2006—resulted in measurably improved health. According to a study conducted by researchers from Harvard University and the University of Michigan—with help from the Centers for Disease Control (CDC)—the health of Massachusetts residents rose more in the first five years of the program than did the health of residents in other New England states.
Researchers have discovered a promising strategy for treating cancers that are caused by one of the most common cancer-causing changes in cells.
Scientists have, for the first time, generated induced pluripotent stem (iPS) cells lines from non-cryoprotected brain tissue of patients with Alzheimer's disease.
Researchers have found a way to change alcohol drinking behavior in rodents, using the emerging technique of optogenetics, which uses light to stimulate neurons.
An international research team has completed the first high-quality genome sequence of a Neanderthal, deepening knowledge about the genetic connections and population histories of ancient and modern humans.
23andMe, the consumer genetics company halted by the FDA for ignoring repeated questions, is being conciliatory. The company offered raw gene data, and interpretative reports, to the general public on more than 240 diseases and traits until Dec. 5, when it announced it would cease taking new customers as a result of FDA action. However: “the company is now writing conciliatory letters to regulators,” says an insider.
For the first time, researchers have confirmed an association between a common magnetic resonance imaging (MRI) contrast agent and abnormalities on brain MRI, according to a new study.
Scientists have identified a unique class of breast cancer cells that lead the process of invasion into surrounding tissues, the first step in the deadly process of cancer metastasis, and have found a way to stop that invasion process in mice.
Two very different recent papers come to a similar conclusion: cyclical, physiologic hormone replacement therapy (HRT) aids memory in postmenopausal women. One paper found native progesterone, as it is in its natural state cycling the body, helps memory early post-menopause. The other paper found cyclic, physiologic, administered estrogen helps memory after induced menopause.
Mothers typically get all the attention, but a new study suggests that the father’s diet before conception may play an equally important role in the health of their offspring.
There is more than meets the eye following even a mild traumatic brain injury. While the brain may appear to be intact, new findings report that the brain’s protective coverings may feel the brunt of the impact.
Men who continued to smoke after a cancer diagnosis had an increased risk of death compared with those who quit smoking after diagnosis, according to a new study.
Researchers are investigating a potential new therapy for autism and other neurodevelopmental disorders by treating gut microbiota with probiotic therapy, which influences autism-like behaviors in a mouse model.
A new report has revealed that the number of people living with dementia worldwide in 2013 is now estimated at 44 million, reaching 76 million in 2030 and 135 million by 2050.
A new brain connectivity study found striking differences in the neural wiring of men and women that’s lending credence to some commonly held beliefs about their behavior.
Stem cells that quell inflammation shortly after traumatic brain injury (TBI) may also offer lasting cognitive gains, says the University of Texas Health Science Center. In a recent article, the team of Children’s Program in Regenerative Medicine Director Charles Cox reported they injected, into the blood of two groups of rats with traumatic brain injury (TBI), human multi-potent adult progenitor cells (MAPCs).