Black sesame, walnut, Flammulina velutipes, these are all brain-strengthening, and vitamins C and B can be supplemented if the pressure is too great. Polygonum multiflorum Thunb is sold online. Black beans and black hair powder, the content of which is Polygonum multiflorum Thunb. , black sesame, Euryale ferox, walnut, oat. Make a cup of this with milk or six walnuts every morning. It tastes good. You can also add more black sesame paste and walnut powder. If you like to drink cold, you can also ice the milk before brewing. I usually use a big mineral water bottle to shake it like mixing wine, shaking it evenly.