Cancer DNA is detectable in blood years before diagnosis

The big secret is that they could detect cancer very early in most people, but the health care companies don't want to pay for the screening. You can pay out of pocket for these procedures. I was told this by a cancer researcher

EDIT:

Adding these caveats:

1. There is a ton of nuance in the diagnosis, since most people have a small amount of cancer in their blood at all times

2. The screenings are 5-10k + follow up appointments to actually see if its real cancer

3. All in cost then could be much higher per person

4. These tests arent something that are currently produced to be used at mass scale

Health insurers would absolutely pay for the screennig if the sum spent on screening everyone was cheaper than long term cancer care.

It's the same reason they pay for annual physicals in the first place.

Nah the tests can go up to 10k per person