Data brokers compile health and frailty profiles that have wide-ranging applications for drug companies, advertisers, insurers and other buyers.
They do not need access to your protected health care records. Instead, companies are data mining your credit card purchases, your public social media, your online purchase habits and a host of other data points to guess at your health situation and assign you a “health score”.
This secret health score could be used by insurance companies to change your life insurance premiums, or by a prospective employer to deny you a job because your health score is not good enough for them.
You have no idea what data they have collected and analyzed, nor what score they have assigned to you. The data itself is often incorrect (as I recently found) and their assumptions about you are often wrong too. But there is no way to correct their secret health score.