Without any public scrutiny, insurers and data brokers are predicting your health costs based on data such as race, marital status, how much TV you watch, whether you pay your bills on time or purchase plus-size clothing. Medical devices are also being used to glean your information for advertisers and insurers. A joint ProPublica and NPR series “Health Insurance Hustle” investigates the games, side days and hidden incentives that can result in higher health costs, delays in care or denials of