I have a circadian rhythm disorder called delayedsleep phase syndrome.
我有昼夜节奏紊乱的问题，即睡眠相位后移综合症。
2
Beginning at adolescence, kids have what's called a delayedsleep phase, where they start sleep later and sleep later in the morning.
青春期伊始，孩子们会产生所谓的睡眠相位后移症，症状表现为入睡比平时晚，起床也比平时晚。
3
A team from Flinders University in Adelaide, Australia, are investigating delayedsleep phase disorder, which is characterised by a persistent inability to fall asleep and wake at a conventional time.