Stat: 48% of U.S. adults have cardiovascular disease, according to the American Heart Association.

Story: What do zebrafish have to do with human health? As it turns out, they can help researchers understand how and why heart disease happens. We spoke to Pew biomedical scholar (2002) Steven Farber at the Carnegie Institution for Science to learn more about his work, which is revealing new strategies to combat heart disease, diabetes, and obesity.