Excessive hypocretin‐1 conducted with hypocretin receptor 1 (HCRTR1) reduced lactate production and brain‐derived neurotrophic factor (BDNF) expression by hypoxia‐inducible factor‐1α (HIF‐1α), thus impairing adult hippocampal neuroplasticity, and cognitive impairment in CUMS model. Here, BDNF is linked to Cognitive impairment.