More than 100 women die from breast cancer every day in the United States. Triple-negative breast cancers, which comprise 15 to 20 percent of all breast tumors, are a particularly deadly type of breast disease that often metastasize to distant sites. Now, researchers have found that luteolin, a natural compound found in herbs such as thyme and parsley, and vegetables such as celery and broccoli, could reduce the risk of developing metastasis originating from triple-negative breast cancer in women.