1 Good for the brain can strengthen the brain and improve intelligence. Walnuts are rich in trace elements such as zinc and manganese, which are important components of pituitary gland. From the composition of walnuts, eating more walnuts is of great help to promote the growth and development of nervous system. Moreover, walnuts contain linoleic acid, which can provide nutrients for the brain, thus making the brain healthier.

2 It is beneficial to the heart. Walnuts are rich in unsaturated fatty acids, which can reduce the content of cholesterol and help protect the heart. Furthermore, arginine, antioxidant and other components in walnuts can protect cardiovascular health and prevent cardiovascular diseases.

3 Prevention and treatment of neurasthenia Walnuts contain quite a lot of melatonin, which can help you fall asleep. Melatonin is a hormone that regulates human sleep rhythm. During the day, the human brain will secrete a small amount of this substance, and at night it will secrete more. The increase of melatonin at night is an important guarantee for a good sleep. For example, patients with frequent dizziness, insomnia, forgetfulness, etc. eating one or two walnuts every day can play a very good preventive role.

Vitamin E contained in anti-aging walnut kernel can protect cells from oxidative damage by free radicals, which is recognized as an anti-aging substance in the medical field, so walnut is called "longevity fruit".