Washington: Too much dietary fat is bad for the heart, but the right kind of fat keeps the heart healthy, according to a paper published in The Journal of Experimental Medicine.

Dallas: Cardiologists at UT Southwestern Medical Center found that sedentary behaviors may lower cardiorespiratory fitness levels. New evidence suggests that two hours of sedentary behavior can be just as harmful as 20 minutes of exercise is beneficial.

Schaumburg: Melasma is a common skin problem that causes brown to gray-brown patches on the face. More likely to affect women and people with darker skin tones, melasma affects more than six million women in the US.

Washington: When it comes to treating acne, much has advanced medical practice, but patients are still prescribed patience as part of any treatment regimen, according to a nationally recognized expert on the skin condition that affects millions of teenagers in the US each year.

La Jolla: In mice with diet-induced diabetes—the equivalent of type 2 diabetes in humans—a single injection of the protein FGF1 is enough to restore blood sugar levels to a healthy range for more than two days.

Lexington: Who would have thought of mosquitoes being put to work to help decrease and control the mosquito population? University of Kentucky professor and researcher Stephen Dobson and his former graduate student, Jimmy Mains, that's who.