A recent study found that eating well helps fight depression. Scientists have found that several foods may have a potential role in reducing depressive symptoms, including fish and nuts (such as walnuts). Harvard Medical School neurobiologists found that these foods can receive the effect of improving depressive symptoms. Further research found that these foods are rich in -3 fatty acids and uracil, and it is these substances that may play a role in anti-depressive symptoms. Studies have suggested that depressed people have lower concentrations of -3 fatty acids than normal, and it is thought that these fatty acids may play an important role in maintaining normal brain function and fighting depression. -3 fatty acids cannot be synthesized by humans and can only be obtained from foods such as flax oil, soybean oil, nuts and deep-sea fish. Animal studies have found that foods rich in -3 fatty acids in the brain block nerve conduction pathways in the brain and increase the production of serotonin. In turn, serotonin contributes to mood stabilization and anxiety relief, an effect very similar to that of antidepressants in the brain. Since the above results are still in the research stage, more in-depth studies may be needed to confirm whether these foods can actually improve people’s depression. Nevertheless, at least this study affirms the importance of -3 fatty acids and uracil for mood control and provides a direction for the development of new antidepressant drugs and health foods.