Boston, MA — People who increased the amount of coffee they drank each day by more than one cup over a four-year period had a 11% lower risk for type 2 diabetes than those who made no changes to their coffee consumption, according to a new study led by Harvard School of Public Health (HSPH) researchers. In addition, the study found that those who decreased their coffee consumption by more than a cup per day increased their type 2 diabetes risk by 17%.

A decade-long effort by members of the International Glossina Genome Initiative (IGGI) has produced the first complete genome sequence of the tsetse fly, Glossina morsitans. The blood-sucking insect is the sole transmitter of sleeping sickness, a potentially deadly disease endemic in sub-Saharan Africa. The vast store of genetic data will help researchers develop new ways to prevent the disease and provide insights into the tsetse fly's unique biology.

The tsetse fly is quite unique in the insect world: it feeds exclusively on the blood of humans and animals, gives birth to live young and provides nutrition to its young by lactation.

Suicide is a general risk for people with psychosis. According to the Journal of Psychiatry, 20 percent to 40 percent of those diagnosed with psychosis attempt suicide, and up to 10 percent succeed.

And teens with psychotic symptoms are nearly 70 times more likely to attempt suicide than adolescents in the general population, according to a 2013 study in JAMA Psychiatry.

But what contributes to such high numbers?

Jane Timmons-Mitchell, PhD, from Case Western Reserve University's social work school, and Tatiana Falcone, MD, from the Cleveland Clinic, reviewed studies of teenagers with psychosis to better understand why they are more at risk for suicide than other groups similarly diagnosed.

While our chromosomes are relatively stable within our lifetimes, the genetic material found in our mitochondria is highly variable across individuals and may impact upon human health, say researchers at the University of Montreal and its affiliated CHU Sainte-Justine Hospital.

Genomes are changing, they say, not just from generation to generation, but even and in fact within our individual cells. The researchers are the first to identify the extent to which the editing processes of RNA code can vary across a large number of individuals.

Scholars say they have created a breakthrough on understanding the demographic history of Stone-Age humans.

A genomic analysis of eleven Stone-Age human remains from Scandinavia revealed that expanding Stone-age farmers assimilated local hunter-gatherers and that the hunter-gatherers were historically in lower numbers than the farmers. 

A team of researchers led by Robert Quimby at the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) has announced the discovery of a galaxy that magnified a background, Type Ia supernova thirtyfold through gravitational lensing. This is the first example of strong gravitational lensing of a supernova confirms the team's previous explanation for the unusual properties of this supernova. 

86-degree Fahrenheit water is quite comfortable for humans, but to many sea creatures it's deadly. If climate change heats up ocean temperatures, the future of species such as coral, which provides sustenance and livelihoods to a billion people, is threatened.

An experiment found that some corals can – on the fly – adjust their internal functions to tolerate hot water 50 times faster than they would adapt through evolutionary change alone. 

CAMBRIDGE, Mass-- The smallest, most abundant marine microbe, Prochlorococcus, is a photosynthetic bacteria species essential to the marine ecosystem. An estimated billion billion billion of the single-cell creatures live in the oceans, forming the base of the marine food chain and occupying a range of ecological niches based on temperature, light and chemical preferences, and interactions with other species. But the full extent and characteristics of diversity within this single species remains a puzzle.

Approved in 2012, Brazil's new Forest Code has few admirers. Agricultural interests argue that it threatens the livelihoods of farmers. Environmentalists counter that it imperils millions of hectares of forest, threatening to release the billions of tons of carbon they contain. A new study, co-authored by Woods Hole Research Center (WHRC) scientists Michael Coe, Marcia Macedo and Brazilian colleagues, published this week in Science, aims to clarify the new law. Entitled "Cracking Brazil's Forest Code," the article is the first to quantify the implications of recent changes to the Forest Code and identify new opportunities and challenges for conservation.

Washington, DC (April 24, 2014) — Many kidney failure patients in Australia who could benefit from undergoing dialysis at home are being treated in hospitals and dialysis units, according to a study appearing in an upcoming issue of the Clinical Journal of the American Society of Nephrology (CJASN). This is creating significant costs for healthcare providers and causing unnecessary disruptions to patients' lives.