In learning, structure and system are important so that the memory can retain what has been learned, and for this, short and regular repetition in everyday life is crucial. If you learn and don’t repeat, you don’t really need to learn at all. After learning, one should allow twenty minutes for the brain to internally process what has been learned. Therefore, playing computer games or watching television directly after learning is not conducive, but the rapid sequence of images disturbs the processing in the memory. Relaxation or exercise in the fresh air are advisable.