Health

A Harvard study of sports programs at Brown University, Dartmouth College, and Virginia Tech finds that the way the head injury commonly called concussion is usually diagnosed varies greatly and may not be the best way to determine who is at risk for future problems.

A recipient of this year’s Nobel Prize in chemistry investigated the workings of cell receptors, the basis of his groundbreaking research involving the complex process of how the body’s cells communicate and interact, while a young medical resident at Harvard.

Every 90 seconds, a mother dies in pregnancy or of childbirth complications — a tragic statistic, but one that may drive efforts to improve health care in developing countries, said public health specialists in a Harvard talk.

Arnold Arboretum Director William “Ned” Friedman and freshmen from his “Getting to Know Darwin” seminar went to the home of a pigeon fancier. “Darwin not only wrote about pigeons, he bred them himself,” Friedman said.

Scientists have long known the main proteins that lead to the development of amyotrophic lateral sclerosis (ALS) and spinal muscular atrophy (SMA), respectively. Now research shows that these two motor neuron diseases likely share a pathway that leads to the development of disease.

Flipping a newly discovered molecular switch in white fat cells enabled mice to eat a high-calorie diet without becoming obese or developing the inflammation that causes insulin resistance, report Harvard scientists from Dana-Farber Cancer Institute.

Professor Charles Langmuir worked for 10 years on an update of “How to Build a Habitable Planet,” a textbook published in 1985 by famed geoscientist Wallace Broecker.

A new study describes the mechanism behind impaired muscle repair during aging and a strategy that may help rejuvenate aging tissue by manipulating the environment in which muscle stem cells reside.

Sugary cereals, oversized soft drinks, and quarter-pound cheeseburgers are among the unhealthy food choices kids face daily. Junk food, most of it highly processed, and sugar-sweetened beverages are major contributors to the childhood obesity epidemic.

Researchers have been able to take control of tiny, transparent worms by manipulating neurons in their brains, using precisely targeted pulses of laser light.

Elizabeth Spelke, a professor of psychology, discussed research on how humans develop navigational skills in an event at the Barker Center.

Harvard researchers have found that a new investigation of tissues and signaling pathways in finches’ beaks reveals surprising flexibility in the birds’ evolutionary tool kit.

Scholars and public health experts gathered at the Harvard School of Public Health to examine Brazil’s progress toward meeting the United Nations’ Millennium Development goals, and to see if there are lessons that can be applied to other countries.

In a series of experiments, Harvard researchers found that people who make quick decisions act less selfishly than those who deliberate.

With childhood obesity now affecting 17 percent of American children, the nation is rallying around the concept that serious action is required. Harvard researchers have identified some key triggers for obesity in early childhood.

Researchers at Harvard Medical School and Harvard-affiliated Beth Israel Deaconess Medical Center have found that a type of immune cell plays a role in guarding against obesity, diabetes, and metabolic disease.

Researchers at Harvard-affiliated Brigham and Women’s Hospital have pinpointed when seemingly innocuous skin pigment cells mutate into melanoma.

According to a study by researchers at Harvard-affiliated Brigham and Women’s Hospital, women who took ibuprofen or acetaminophen two or more days per week had an increased risk of hearing loss.

In research, treatment, and outreach, researchers from Harvard Medical School are taking on the childhood obesity epidemic in the United States. This is the first in a three-part series.

Most of the DNA alterations that are tied to disease do not alter protein-coding genes, but rather the “switches” that control them. Characterizing these switches is one of many goals of the Encyclopedia of DNA Elements (ENCODE) project.

A research team led by Martin Nowak has developed a technique for modeling the effects of various HIV treatments and for predicting whether the treatments will cause the virus to develop resistance.

A team of researchers from Harvard and Wellesley College shows that data gathered from online volunteers can be just as good as data collected in the lab.

Researcher Biju Parekkadan is developing devices that employ cell therapy to help people with organ failure.

A study led by Harvard researchers of Mongolian schoolchildren supports the possibility that daily vitamin D supplementation can reduce the risk of respiratory infections in winter.

In the synthetic biology lab of Professor Pamela Silver, researchers are looking for ways to make biological engineering faster, cheaper, and more predictable.

A study conducted by Professor of Psychology Richard J. McNally and colleagues from the University of Groningen and the University of Amsterdam is casting doubt on the “amnesia barrier” that has long been a hallmark of multiple personality disorder, now called dissociative identity disorder, by demonstrating that patients have knowledge of their other identities.

Researchers at Harvard-affiliated Dana-Farber Cancer Institute and the Broad Institute of Harvard and MIT used new technology to explore a 19-year-old theory, discovering what may be an Achilles’ heel for cancer cells: essential genes disrupted in the process of becoming cancerous that can be attacked further with drug therapy.

A biologist with an affinity for spiders shared his passion, taking the audience on a tour of arachnids large and small and making a pitch for their conservation as natural pest control.

As described in a paper published in the Proceedings of the National Academy of Sciences, a research team found that by studying how drugs interact in pairs, researchers can predict how larger combinations of drugs will interact.

Some women’s vulnerability to anxiety and mood disorders may be explained by their estrogen levels, according to new research by Harvard and Emory University neuroscientists.