What triggers the delayed phase preference in adolescents?

A) the increase in stress that adolescents experience resulting in excess cortisol
B) melatonin, which is released about 2 hours later each night in adolescents
C) anxiety that adolescents experience because of social pressures
D) testosterone in adolescent males and estrogen in adolescent females

Delayed Phase Preference

Change in pubertal hormone levels that causes adolescents’ sleep patterns to shift such that they tend to remain awake late at night and groggy early in the morning.

Melatonin

A hormone that influences sleep.

Excess Cortisol

An unusually high level of cortisol in the body, often associated with stress, which can lead to various health problems.