cancer treatments

Cut a tumor from a child's brain and you may save a life. But surgery can hurt the child if healthy brain cells are removed. A Seattle doctor is working on a substance that might help. It binds tightly to cancer cells and makes them glow, so they're easier to distinguish from healthy tissue.

For years, researchers have struggled to understand the mental fog that envelops some patients getting chemotherapy. Now a study has found that the cancer treatment significantly decreases brain activity in regions responsible for memory, attention, planning and prioritizing.