What does a night owl mean?

Example: This old owl is called a cat-headed owl in Jiangnan and a night owl in Jiangbei. It can be seen everywhere in the mountains.

2. Can it be used as a metaphor for people who like to sleep late (including jokes)?

He is a night owl. He doesn't want to sleep at night and is a little excited.

Pronunciation: yè māo zi

Extended data

"Night owl" is usually diagnosed as "sleep phase shift" in medicine.

The researchers first discovered this CRY 1 gene mutation in an American patient with "sleep phase shift", and then further tested his family members. It was found that five relatives of this patient also had this mutation, and they all had "sleep phase shift".

The researchers also investigated six unrelated Turkish families and analyzed the genes of 70 people. The results showed that among the 39 people with CRY 1 gene mutation, 38 people had sleep problems, while those without this mutation had normal sleep.

The researchers found that the mutation of CRY 1 gene will lead to the overactivity of CRY 1 coding protein and long-term inhibition of biological clock-related regulatory genes.

Some previous studies have found the "night owl" gene, but the special feature of this genetic variation is that it is more common. The latest research shows that one in every 75 non-Finnish Europeans carries the CRY 1 variant gene.

Professor Micha?l Youn of Rockefeller University, who is in charge of the study, said in a statement: "Compared with other mutations related to sleep disorders found only in a single family, this is a quite influential genetic variation."

People's Daily Online-"Night Owl" is also caused by genetic variation.