A new study has found that “skinny fat” –  the combination of low muscle mass and strength in the context of high fat mass – may be an important predictor of cognitive performance in older adults. While sarcopenia, the loss of muscle tissue that is part of the natural aging process, as well as obesity both negatively impact overall health and cognitive function, their coexistence poses an even higher threat, surpassing their individual effects.

At the University of Saskatchewan, researchers have been working on a novel salmonella vaccine that holds promise for preventing this food-borne infection.

When Rick Ostfeld gets bitten by a tick, he knows right away. After decades studying tick-borne diseases as an ecologist at the Cary Institute of Ecosystem Studies in Millbrook, New York, Ostfeld has been bitten more than 100 times, and his body now reacts to tick saliva with an intense burning sensation. He’s an exception. Most people don’t even notice that they’ve been bitten until after the pest has had time to suck up a blood meal and transfer any infections it has circulating in its spit.

University of Virginia School of Medicine researchers have linked sensitivity to an allergen in red meat – a sensitivity spread by tick bites – with a buildup of fatty plaque in the arteries of the heart. This buildup may increase the risk of heart attacks and stroke.

Nearly one in every six seniors in America faces the threat of hunger and not being properly nourished. This applies to those who aren’t sure where their next meal is coming from and those who don’t have access to the healthiest possible food options. The issue is severe enough that the AARP reports that seniors face a healthcare bill of more than $130 billion every year due to medical issues stemming from senior hunger.

Princeton researchers have developed a new computational method that increases the ability to track the spread of cancer cells from one part of the body to another.

In 2015, exposure to particulate matter in sub-Saharan Africa led to 400,000 otherwise preventable infant deaths, according to a new Stanford study. The research published this week in Nature, finds that even modest improvements in air quality could lead to substantial reductions in infant mortality in developing countries.

Why do individuals respond differently to the same environment? Researchers from North Carolina State University and Oregon State University have pinpointed a genetic difference in zebrafish tied to differing responses to the same environmental chemical. The work could have implications for identifying genetic factors that explain differential chemical sensitivity.

People with diabetes could be able to monitor their blood sugar without drawing blood using a system now being developed at the University of Waterloo.

Washing your hands and cleaning your house frequently may help to lower your contact with common flame-retardant chemicals, according to a new study by researchers at the Columbia Center for Children’s Environmental Health (CCCEH) at Columbia University’s Mailman School of Public Health. The study is the first to assess whether house cleaning and handwashing can effectively lower exposure to flame retardants. Results appear in the Journal of Exposure Science and Environmental Epidemiology.