For a century the American Heart Association answered to other health charities. That is no longer where the contest is decided. When a woman wants to understand her heart on a given Tuesday, she does not open the Heart Association's website. She glances at the ring on her finger, reads the lab results in an app, or asks a telehealth service. The Heart Association now competes for that daily moment of attention against two very different groups at once. There are the peer health nonprofits it has always measured itself against, among them the British Heart Foundation, the American Cancer Society, and the Alzheimer's Association. And there is a newer set of consumer-health companies that sell wearable devices, lab-testing subscriptions, and health apps, among them Function Health, Apple Health, Oura, Whoop, Levels, and Hims & Hers. The Heart Association funded the science that explains what these products measure. The products own the screen where people read the answer.
How the ranking works. The Structural Brand Power Index (SBPI) scores each organization across five weighted measures, awareness, trust, mission clarity, differentiation, and loyalty, and ranks them against the others competing for the same heart-health attention. For health causes the weighting emphasizes trust at 35 percent and mission clarity at 30 percent, then awareness at 15 percent, with differentiation and loyalty at 10 percent each. Every organization receives a single score from 0 to 100. The same five measures drive the brand scorecard later in this report, so the ranking and the scorecard tell one connected story.