TYR and Cognitive impairment: Phytochemicals from lotus seedpods have been determined to reveal a variety of biological activities, including ameliorating cognitive impairment (10–12, 52–61), antioxidation (4, 5, 62–64), antibacterial (15–17, 65), anti-glycative (7, 18, 19), neuroprotection (48, 66), anti-tyrosinase (46, 47), retinal protection (6), anti-insomnia (67), anti-cancer (68), immunomodulatory (69), ameliorating intestinal injury (70), anti-diabetes (20), regulating lipid homeostasis (38), anti-inflammatory (71) and α-glucosidase inhibitory (4) activities.