Whether or not you have tried the local speciality, Dutch herring, now may be the time. Grab a few friends and become a true Amsterdammer, if that does not convince you, do it in the name of learning! Fish is rich in Omega-3, which is used to produce brain cells and nerve cells. Healthline.com says this Omega-3 is also memory-enhancing. Herring can be found in street stands on the street usually detectable by the Dutch flags on either side of the carts. Lucky for you, stands like these can be found easily around the central campuses such as opposite the Singel library (Singel 468), or Spui 7 by Kalverstraat. Omega-3 is not limited to herring, so if that isn’t your cup of tea, then tinned tuna or salmon will do the trick.