When does the study end? BHR Support February 23, 2019 23:13 Updated Follow There is currently no end date to the study. As long you are willing to participate, we will collect data. Related articles How often should I expect to receive emails from the Brain Health Registry? How much time does it take to participate? By joining the Brain Health Registry, will I receive healthcare services? What is expected of me? Will I get results from my brain tests? Comments 0 comments Article is closed for comments.