Dallas, Texas - Spending a cumulative 2.5 hours a week doing recreational physical activity is linked with a 25 percent lower risk of coronary heart disease in women under age 50, according to new research in the American Heart Association’s journal Circulation.

Washington, DC - A team of researchers led by a National Institutes of Health investigator, Teresa Przytycka, Ph.D., has developed a new software tool called AptaTRACE that could be an important advance for drug developers and other scientists who want to identify molecules that bind with high precision to targets of interest.

Memphis, Tennessee - The H5 avian influenza A virus that devastated North American poultry farms in 2014-15 was initially spread by migratory waterfowl, but evidence suggests such highly pathogenic flu viruses do not persist in wild birds. St. Jude Children’s Research Hospital led the research, which appears online this week in the Proceedings of the National Academy of Sciences.

Baltimore, Maryland - When a battlefield explosion injures a soldier’s face or neck, the critical air passage between the head and lungs often becomes blocked, which can lead to brain damage and death within minutes.

Rochester, Minnesota - You and your baby are not alone. Fussiness is common and can be a normal part of infant behavior. In general, there’s no harm in giving your baby gas drops if they seem to help. It’s likely her frequent fussiness will fade over time without additional treatment.