About the Study

A collaboration with the American Heart Association and Brigham and Women’s Hospital, a Harvard Medical School affiliate, this study will explore the links between physical activity and heart health1. It will help drive insight into what factors can affect heart health and impact your movement over time. Using Apple Watch and iPhone, researchers can gain a better understanding of potential early warning signs to create interventions and products that will help us all lead longer, healthier, and more active lives.

Apple Research App

The future of health research is you.

Making the world a healthier place just got a lot easier. Now you can contribute to groundbreaking research studies simply by using your Apple Watch and iPhone. Your participation will enable innovative research that would have been all but impossible before. And it will help Apple to create even more empowering technologies. We invite you to join one or more studies and make your mark on human health.



Innovative products, innovating research.

Until now, conducting large-scale health studies has been time-consuming and expensive. Devices like Apple Watch and iPhone are changing this dynamic. They capture meaningful health information, including signals from your heart, your level of motion and activity, and your sound exposure levels throughout the day. With the Research app, volunteering to help advance medical understanding has been greatly simplified2. You just sign up for a study (or studies) right from your iPhone. If you meet the criteria for a given study, you’re in. It’s that easy.

Designed for Privacy.

Nothing is more personal than your health information. Helping you keep it confidential and secure is as important to us as it is to you. What you choose to share for research, and with which study, is controlled entirely by you. Any data collected through the Research app will be encrypted if you have a passcode set on your device. Once shared, it is stored securely in a system within Apple designed to meet the technical safeguard requirements of the Health Insurance Portability and Accountability Act. Apple will not have access to any contact information or other identifying data that you provide through the Research app. And you can withdraw from any study at any time, ending any future data collection.


2 The Apple Heart and Movement Study requires Apple Watch Series 1 or later with watchOS 6.1 or later.

Research rethought.

In 2017 and 2018, researchers at Stanford worked with Apple to conduct the Apple Heart Study on the detection of atrial fibrillation, a heartbeat irregularity that is a leading cause of stroke and hospitalization.  Over 400,000 Apple Watch users participated and helped validate the ability of wearable technology to aid in the early detection of this condition, which often goes undiagnosed. And the study led to the availability of the irregular rhythm notification that is now on Apple Watch.

See the Results of the Apple Heart Study

Take a moment to make a difference.

You can start making your contribution to health research right away. Simply download the Research app and enroll in a study. Humanity says thank you.


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