Reading Q notes: A marker for the end of adolescence.
Chronotype: when endogenous clock synchronized with 24 h day. (late: owls, early:
Around 20 yrs, sleep timing changes: one way to mark change in adolescence.
Munich Chronotype questionnaire (MCTQ): questions people on sleep habits on
both work and free days. Chronotype is assigned based on “midpoint” on free days
Chronotype depends on genetic, environment and age.
Children are early chronotypes, during development they progress later until they
reach a max