Environmental Drivers of Malignant Clonal Selection in Precancerous Lesion Evolution.

Summary: Think of your body as a lush garden. Occasionally, a "weed" (a mutated cell) pops up. Whether this weed withers away or takes over the garden depends heavily on the weather and soil conditions—your environment. This paper explains that cancer isn't just about bad genes; it’s about how environmental factors (like pollution or lifestyle) actively "coach" these bad cells. These outside forces help the weeds survive, hide from the gardeners (your immune system), and even resist the strongest weed killers (medications), turning a small problem into a malignant invasion.