A dye used to color blue M&Ms and Gatorade may have a higher calling: Scientists say it could help treat spinal-cord injury, ScienceBlog reports. After a spinal injury, a chemical called ATP, usually key to cells’ health, rushes to the site and kills cells, worsening paralysis. With more research, Brilliant Blue G dye may be able to halt the process—if it’s administered in time. (More color stories.)