“…Considering the interaction between a person's rhythms and those of the environment (i.e. dark-light cycle, schedules or social cues), morning and evening types show differences in behavioural habits (Nakade, Takeuchi, Kurotani, & Harada, 2009), personality (DeYoung, Hasher, Djikic, Criger, & Peterson, 2007;Díaz-Morales, 2007), patterns of social development (Cofer et al, 1999) and cognitive performance (Goldstein, Hahn, Hasher, Wiprzycka, & Zelazo, 2007). These differences between morning and evening types also appear in several health indicators.…”