In much of the current cancer research, the focus is on drugs and methods that will starve a tumor's blood supply, effectively killing it and hopefully stamping out cancer in the process.

In an interesting twist of sorts, Spanish researchers are looking at a new drug for skin cancer that does the opposite -- it causes tumors to explode due to overloading them with oxygen.

Tumor cells are susceptible to this since they cannot balance the levels of free radicals, unlike normal cells. In effect, the overloading of oxygen in certain cancer cells causes them to end up dying, as they cannot cope with and balance the extra oxygen that comes aboard the cell. And, cancer research takes another interesting turn.