The highest learning productivity is recorded in the morning, between 9:00 and 11:00, after which the learning capacity curve gradually decreases, installing fatigue, inattention, boredom and drowsiness; The lowest learning productivity is between 13:00 and 15:00. Generally, after an hour and a half after lunch, the learning ability curve begins to gradually increase; In the afternoon, the learning ability curve reaches its maximum level between 17:30 and 19:30, but without equaling that of the morning, after which it gradually decreases towards the usual bedtime.
