When you're under sudden stress, your liver quickly makes more sugar and releases it into your blood so your muscles have extra energy to react.
Evidence from Studies
Supporting (2)
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Amygdala–liver signalling orchestrates glycaemic responses to stress
When mice get scared, their brain sends a signal straight to their liver to make more sugar quickly, giving their muscles the energy they need to run or fight — and this happens without using hormones from the pancreas or adrenal glands.
Impact of acute stress on murine metabolomics and metabolic flux
When mice get stressed, their bodies quickly make more lactate and pyruvate — chemicals that the liver uses to make more sugar. This sugar likely fuels muscles during stress, just like the claim says.
Contradicting (0)
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