Jujube is called "live vitamin C pill" by nutritionists. If vitamin C is lacking in the diet, people will feel tired and even get scurvy. Eating more jujube can supplement vitamin C, enhance cell activity and prevent scurvy.

2. fig

Figs contain a chemical similar to aspirin. Can dilute blood, increase blood flow, so that the brain can supply enough blood.

3. Pumpkin seeds and pistachios

Pumpkin seeds and pistachios are rich in unsaturated fatty acids, carotene, peroxides and enzymes. Proper consumption can ensure cerebral blood flow and make people energetic and radiant.

4. Walnut

Walnut is rich in auxin, which can make nails firm and not easy to crack. At the same time, walnuts are rich in plant protein, which can promote the growth of nails. Moreover, walnuts are also rich in vitamins, which can provide enough nutrition for the brain.