MBP and Mental deterioration: The results demonstrated that WMI was positively associated with cognitive decline (Figure 1a) (black‐gold: R = 0.638, p < 0.05; MBP: R = 0.655, p < 0.05; MAG: R = 0.673, p < 0.05; n = 10), indicating the occurrence of WMI‐mediated cognitive dysfunction.