While past research on the question has found otherwise, a new study by Defense and Veterans Affairs researchers suggests that women in the military are at no greater risk than men for developing posttraumatic stress disorder, given similar experiences--including combat.

The study involved active-duty troops and veterans who are part of the Millennium Cohort Study. That effort has more than 200,000 participants in all and the new PTSD study included more than 2,300 pairs of men and women who were matched based on an array of variables--including combat exposure--and followed about seven years, on average.

Toronto researchers have discovered that a single molecular event in our cells could hold the key to how we evolved to become the smartest animal on the planet.

Benjamin Blencowe, a professor in the University of Toronto's Donnelly Centre and Banbury Chair in Medical Research, and his team have uncovered how a small change in a protein called PTBP1 can spur the creation of neurons - cells that make the brain - that could have fuelled the evolution of mammalian brains to become the largest and most complex among vertebrates.

Vitamin D is being blamed for or is linked to curing everything in 2015, and so it is little surprise a paper uses a genetic study to bolster observational evidence that lower vitamin D levels are associated with increased risk of multiple sclerosis.

Researchers have unraveled the mystery cause of the emerging wheat disease White Grain Disorder, by isolating three previously undiscovered fungi from infected wheat samples and sequenced their genomes.

Australian wheat exports are worth more than $6 billion a year with diseases costing the industry around $1 billion a year. White Grain Disorder emerged about 20 years ago and has sporadically affected crops in Southern Queensland and South Australia, but until now has been poorly understood.

The dominant antibody type present in the blood of transplant recipients may indicate their likelihood of experiencing organ rejection, according to a study which may help doctors identify patients who need aggressive treatments to safeguard the health of their new organ.

Transplant recipients who receive a kidney, heart, or lung often develop an immune response to the foreign tissue in the form of antibodies referred as donor-specific HLA antibodies. Some patients may already have these antibodies before their transplant because they have been exposed to blood products or previous transplants. Although the presence of donor-specific HLA antibodies in a recipient is usually not a good sign, not all patients who have them experience a poor outcome.

Women are more likely than men to initiate divorces, but not to end non-marital relationships, according to Michael Rosenfeld, an associate professor of sociology at Stanford University.

Rosenfeld's analysis relies on survey data from the 2009-2015 waves of the nationally representative How Couples Meet and Stay Together survey. He considers 2,262 adults, ages 19 to 94, who had opposite sex partners in 2009. By 2015, 371 of these people had broken up or gotten divorced.