Can’t resist your pup’s adoring expression when he begs for a treat? A new study reveals key anatomical features that could explain what makes dogs’ faces so appealing. The findings also suggest that humans contributed to dogs’ ability to form facial expressions through thousands of years of selective breeding.

Results from a new study suggest that two sugar substitutes disrupt the function of a protein that plays a vital role in liver detoxification and the metabolism of certain drugs. These sugar substitutes, also known as non-nutritive sweeteners, provide a sweet taste with few or no calories.

Findings from a new study are providing important insights into the spread of Rocky Mountain spotted fever, which is transmitted from dogs to people through ticks. The new data are being used to create models that could help predict, and possibly prevent, future outbreaks.

In a new study conducted in rats, scientists report evidence that vitamin K could help protect against aging-related cognitive declines associated with Alzheimer’s disease and other forms of dementia.

In a new study, many athletes reported symptoms that are often used to diagnose concussions even though they did not suffer a head injury. The findings suggest that some symptoms, such as fatigue and neck pain, could be attributed to intense exercise rather than a brain injury.

Almost half of the U.S. adult population has high blood pressure — or hypertension — and about 20% of these patients have treatment-resistant hypertension. The reason why some people are resistant to treatment has been a mystery, but new study results show that a certain gut bacterium may be an important factor.

A new study using prenatal brain scans revealed significant differences in brain structures at around 25 weeks’ gestation between children who were later diagnosed with ASD and those who were not. The study adds to mounting evidence that autism begins in early development and suggests possible opportunities to identify the disorder at an earlier age.

A simple blood test for women of all ages and risk levels could one day be possible thanks to a new set of protein biomarkers that researchers identified using breast milk.