Swiss researchers said on July 25 that people really do have a hard time getting a good night’s sleep when the moon is full, even when they cannot see it.
The results of a study on 33 volunteers published in the journal Current Biology showed that people took longer to fall asleep at night and slept for a shorter time during a full moon.
The volunteers were monitored on two separate nights, and were not aware of the cycle of the moon during their time in the sleep lab.
When there was a full moon, people slept an average of 19 minutes less and took five minutes longer to fall asleep than they did when there was a new moon.
“The lunar cycle seems to influence human sleep, even when one does not ’see’ the moon and is not aware of the actual moon phase,” said Christian Cajochen of the Psychiatric Hospital of the University of Basel.
Study participants also reported feeling less well-rested, and showed lower levels of melatonin, a hormone that regulates sleep and wake cycles, during the full moon.
“To our knowledge, this is the first report of a lunar influence on objective sleep parameters,” the study said.
1. asleep adv.
睡著地；缺乏警惕地 (shui4 zhao2 de5; que1 fa2 jing3 ti4 de5)
例: Do you have trouble falling asleep?
2. monitor v.
監控；監測 (jian1 kong4; jian1 ce4)
例: Please continue to monitor his vitals.
3. be aware of phr.
意識到 (yi4 shi4 dao4)
例: He doesn’t seem to be aware of how serious the problem is.