Morningness-eveningness and temperament: The Regulative Theory of Temperament perspective

► Morningness was related to the most advantageous profile of temperament. ► Morningness was associated linearly to high endurance and briskness. ► Moderate levels of morningness-eveningness were related to the lowest activity. ► Moderate morningness-eveningness related to high perseveration, and emotional reactivity.