Waking up early : the effect of premature birth on chronotype, sleep, and health-related quality of life

Background. Premature birth can be a harsh start to life; globally it is the leading cause of death in children under five and the outlook is grimmer the smaller the child. This perilous beginning is not the only adversity these survivors face, however. Decades-long follow-up studies have revealed subtle impairments in many domains of mental and physical health, intellectual achievement, and wellbeing, especially in survivors born preterm (