"You call that a 'minor' time-management problem?"
Heading into the Speed Force Plane for intense exercise right after eating was obviously bad for the body, but Barry seemed long accustomed to it.
Whenever he went out on missions, he was basically caught in a special cycle: sprinting around and fighting for justice, grabbing high-calorie food whenever he had a moment to replenish his strength, then going right back to running.
Most Speed Force users were like that. Their stamina was not limitless; they simply replenished themselves quickly, digesting food quickly and absorbing energy quickly as well.
In the comics, Joker had once poisoned Barry with something called the Hamster Virus. It forced him to keep running at high speed nonstop, and if he stopped, he would die instantly. At the time, Batwoman revealed a piece of secret intelligence to the Justice League.
Barry could run for eight hours at most without stopping. After that, he had to stop and eat and drink to restore his strength.
As for how an outsider without the Speed Force knew a speedster's secret?
Because he was Batwoman!
Anyway, he found and defeated Joker in seven hours, made an antidote in fifty-nine minutes, and saved The Flash at the last moment. As steady as ever, and perfectly in line with an eight-hour workday.
That had been Barry's longest continuous run. Once the poison was cured and he finally stopped, he had lost an entire layer of flesh, looking like a skeleton.
Other speedsters had even less endurance than Barry. Every step The Flash took generated Speed Force, while everyone else merely used it. The gap was enormous.
At its core, the Speed Force was still a form of energy. Though humanity's current technology could not comprehend it, it was like magic—the source that generated magic