Fish and legumes are good for the brain, but smoothies are not. These researchers from Groningen explain why

The more brain cells, the smarter you are. Isn’t that right? No, says Iris Sommer, professor of psychiatry at the UMCG. Not the number of brain cells, but the connections between them determine how your brain performs. After all, a cell that is not connected to the network remains unused. That’s great, because where the number of brain cells of every person is genetically determined and therefore cannot be changed, you do have an influence on the development of the connections in the brain.