You are what you read
"... whether you have any medical conditions; and so on ..."
Any time I read about or hear about some medical condition, I read about it on Wikipedia (and other sites) and follow any interesting looking links. If a similar law passes in the UK, they'll send a medical SWAT team round to my house to seal it off and isolate me.
It may be time to start using a VPN more often. The Opera browser has a free one built in to it.
Note: My ISP (Virgin Media), along with others I'm sure, has the ability to inject their own tab into my browser session to show me anything they want. They have used this technique in the past to nag me about selecting a service option. I would not be surprised if the ISPs themselves started injecting adverts into their customer's browsers in this and other ways.