Recovery time course of brain glycogen levels after depletion by one acute episode of hypoglycemia (n = 5 for each time point, indicated by diamonds) as well as after RH (n = 10, indicated by squares) in cerebellum (A), cortex (B), and hypothalamus (C). Values are expressed in micromoles per gram wet weight. Error bars indicate ±sem. Control glycogen levels ± sem in cerebellum, 7.78 ± 0.55 μmol/g (n = 17); in cortex, 5.4 ± 0.38 μmol/g (n = 16), and in the hypothalamus, 4.45 ± 0.37 μmol/g (n = 14), are indicated by continuous solid lines.