When you fall asleep, brain waves begin to decrease from 14 Hz in beta waves and reach alpha waves (between 7 and 14 Hz) and then theta (between 4 and 7 Hz) and delta (between 0 and 4 Hz).

Professor Martin Seligman, during his presidency of the American Psychological Association in 1998, asked applied psychologists to return to their principles and pay attention to making people’s lives more fruitful and satisfying, as well as identifying and cultivating their talents, in addition to treating and healing mental patients. .

In the western civilized countries, people’s living environment is more luxurious in many ways compared to their cave-dwelling predecessors. We have managed infant mortality, many deadly infectious diseases, shortages of food, energy, housing, transportation systems, and the devastating effects of extreme weather conditions, etc., and we have built machines that

People report more happiness on days when they achieve valuable goals compared to days when they achieve low-value goals, and these goals may be determined by multiple factors, including personality traits.