10 minutes rest in total silence. You should turn off the TV, phone and all sources of noise. This break will allow in the shortest possible time to lay in the brain a whole layer of important knowledge gained in the learning process.
Previously it was thought that only a good night's sleep helps to permanently remember the information. This method uses most of the people whose work is connected with mental labor. As it turned out, there is a more rapid and effective method of learning.
The main thing is to relax completely and to remove at least 10 minutes all the distractions. Then a long sleep can really replace the simple and effective rest.