one of the things that a lot of people who take this have atrial fibrillation.they can take to treat this. these are discussions patients need to have with their doctors. anybody watching, yes, this is concerning. but we should never stop taking a medication. you want to discuss this with your doctor. and getting back to the study, essentially what they did, they looked at people taking the drug for a long period of time and what they found is those who had taken fit for atrial fibrillation as compared to other reasons, such as an artificial valve, three and a half times for likely to have dementia. those with erratic levels were also at increased risk. >> when you're in afib, you've got a quivering of the upper chamber and that creates problems with the blood flow to the brain. i read the study. i know people who are on this. i'm concerned for my loved ones. when you read it, what concerns you? when you read this type of study, what are you telling people that come to you? >> well i'm kwrnd because there's 20 million americans taking it and this has been used f

. >> i have a high risk of atrial fibrillation. >> reporter: a report explained his genetic information, which bailey posted online for anyone to see. >> and what i'm hoping will happen is that more and more people like me will in fact provide this information. i think the future is going to be amazing if we will just let it be amazing. if we will get out of its way. >> reporter: as for security, murdock study researchers say they use the strictest levels of encryption, and under the study's protocols, the government cannot come and take the samples. >> when you go into our electronic database, the server that stores all the information, you become a number. so you're disconnected from all of your identifiable information. >> reporter: everything is hackable. but can you feel like you can give them a guarantee? >> i think you can never give somebody a 100% guarantee. >> reporter: the project developers, however, did promise the campus would revitalize the local economy. >> the campus was envisioned as an opportunity, a chance to kind of move a kind of devastated community out of that mi