Short-term memory can be trained, but long-term memory cannot. Brain training must go beyond pure memory exercises such as memorizing telephone numbers. Modern brain training with long-term effects increases and stabilizes the basic functions of mental performance. Anything new wakes up the brain, so you should do things you do in everyday life a little differently. For example, you can try reading a text upside down or going through a few lines to see how often the letter “n” follows an “e.” Finally, the brain doesn’t like routine, as only exploring new avenues challenges it, such as taking a walk in an unfamiliar area. In this context, physical exertion combined with novelty is an important stimulus for the brain. People who are curious basically don’t need brain training.