The study found that eating walnuts and other nuts for a long time can improve some indicators related to brain function, which is not the same as the expected brain tonifying function of walnuts. So far, there is no direct research evidence that eating walnuts can improve people's IQ or test scores in a short time. Moreover, most people's intelligence will peak around the age of 20~30. After that, it is difficult to improve. A correct diet, including daily intake of a small number of nuts such as walnuts, is indeed conducive to delaying the aging process of the brain and reducing the risk of diseases, including stroke. However, the effect of quick response, good memory and intelligent running up is just a beautiful imagination.
Daily intake of an appropriate number of walnuts is conducive to delaying the aging process of the brain is correct according to this passage.