Knowledge is the best defence

The NHS-Galleri trial followed over 140,000 people. Its main goal wasn't met — but the most advanced, stage IV diagnoses fell

PATHFINDER 2 followed nearly 36,000 adults over 50 across the US and Canada — the largest look yet at how well the test performs.

A follow-up asked how people coped emotionally with cancer blood testing. Most reported little distress, and those who got a signal returned to normal within a year.