EDoN brings together global experts in data science, digital technology and neurodegeneration to collect and decode huge amounts of digital health data. We aim to develop digital data fingerprints that pick up the earliest changes in the brain in diseases like Alzheimer’s and can be built into wearable technologies like watches or headbands. These fingerprints could transform research efforts today, helping scientists make faster breakthroughs in understanding the disease and testing potential new preventions and treatments.