It's like active T cells drinking Gatorade (acetate) to stay energized, but when they get tired, they switch to lemon water (citrate), which isn’t as good for k

It's like active T cells drinking Gatorade (acetate) to stay energized, but when they get tired, they switch to lemon water (citrate), which isn’t as good for keeping them strong. By noticing this fuel switch, scientists can identify tired T cells and possibly find ways to get them back on Gatorade to keep fighting sickness.