They're couched as wellness plans with insurance discounts if you disclose certain aspects of your behavior. All endorsed by employers (who tend to pay the lion's share of insurance premiums) and political parties (because who doesn't want a healthier <insert country here>).

Thanks for the info. I had deduced as much, but I was asking about the legal side of things. Is there anything more concrete than "endorsed by" (which I take to mean "they said nice things about it)? I understood "Democrats opened the door to" as meaning something like perhaps a tax or legal incentive for these plans: I just wanted to know the specifics because government involvement in our healthcare system is complex enough that it could have been any of a million possible things.