Our body seems stable, but every day, some of our cells die and get replaced. This growth and replacement is necessary for our survival — but sometimes, cell instructions get screwed up to the point that the cell keeps on growing, out of control, dividing and spreading.
This — the unwanted overgrowth of our body’s own cells — is cancer.
And doctors may soon have a new and powerful weapon to spot it, early, without ever needing to find a swollen clump of the out-of-control cells. That clump is a tumor, and they take a while to form, which gives cancer more time to spread throughout our body.