Because cancer cells live on glucose and have 15 times the glucose receptors as healthy cells, researchers are experimenting with the idea of severely limiting sugar intake of patients, then preceding their chemo treatments with insulin. The thinking is that the greedy, glucose-starved cancer cells will take in the insulin and the chemo drugs will be readily absorbed as well. If that proves effective, it would provide motivation for millions to drastically cut sugar intake.
So do brain cells.