The American Red Cross declared an emergency blood shortage on July 9, calling for donations of all blood types—but especially type O—as the agency scrambles to make up for the Fourth of July holiday week.

The U.S. Preventive Services Task Force (USPSTF) issued a Grade I recommendation for screening peripheral artery disease (PAD) and cardiovascular disease (CVD) risk with the ankle-brachial index (ABI), indicating current evidence is insufficient to recommend screening without signs or symptoms of disease.

Blacks who survive in-hospital cardiac arrest (IHCA) are 28 percent less likely to live to one year after discharge and 33 percent less likely to survive five years when compared to white counterparts, suggesting a disparity in follow-up care.

Transgender women who initiate cross-sex hormone therapy are at an increased risk of venous thromboembolism (VTE) and ischemic stroke, researchers reported in the Annals of Internal Medicine.

Blue-collar workers who cleaned up debris in the aftermath of the World Trade Center attacks on September 11, 2001, experienced post-traumatic stress disorder (PTSD) at double the rate of the general population, according to a study in Circulation: Cardiovascular Quality and Outcomes.

Patients were about 40 percent less likely to survive the most severe heart attacks in the six coldest months of the year, according to research presented in June at the British Cardiovascular Society Conference.

On the heels of a deadlier-than-normal flu season, some scientists are wondering what will happen when a true pandemic hits. Vaccine doses would likely dry up—but cheap, readily available medications like statins could help a patient stave off flu as the virus runs its course, a pair of researchers told NPR.

Three pediatrics professors teamed up for an editorial in The New York Times imploring readers to lump juice into the unhealthy beverage category alongside soda.