The age of 90 can be called the age of the turtle.

Pronunciation: tái bèi zhī nián

鲐, originally refers to the fish.

Because the wrinkles on the backs of the elderly resemble the patterns of mackerel fish, it has been extended to mean "old people with long lives".

It is worth noting that the back of a mackerel does not refer to "the back of a mackerel", but to "the old man whose back is like a mackerel", and then refers to the elderly in general.

Ninety-year-olds have many titles. In addition to Qibei, there are also titles such as gǒu, hǒu, frozen pear, and ní.

In addition, "Shiming" also lists the titles of other ages in detail, briefly listed as follows:

First born: baby, 嫛 (yī); only able to do: Ru; seventh Year: mourning; broken teeth: chèn; fifteen: child; twenty: weak; thirty: strong; forty: strong; fifty: mugwort; sixty: senior citizen (qí); seventy: old age ( mào); eighty: dié; ninety: squid back, yellow hoe, beetle, frozen pear; one hundred years: period of eternity; old: decay.