Warner decided to volunteer for the Alzheimer’s Disease Neuroimaging Initiative (ADNI) clinical trial for two reasons: his trust in the physician running the trial and a family history of the disease. He relates his personal experience participating in a trial, describing the various tests he takes and the benefits he perceives for his own health.

Reproduced with permission from NIH Clinical Trials and You. NIH does not endorse or recommend any products, services, or information described or offered here by Healthline. Page last reviewed October 20, 2017.