As the saying goes, "people are slow until they are thirty." Can a man really grow to be thirty?

In fact, the full version of this proverb is "Men are slow at thirty, women are full at eighteen", and another version is "Men are slow at thirty, women turn back at eighteen". What the hell does that mean? Here is an answer for you.

"Men are slow in their thirties", which means that men's height will grow until they are 30 years old. Although the height change of men at the age of 16 or 17 is not obvious, in daily life, people often find themselves much taller than many years ago, even if it is only a little longer.

The older generation believes that men will continue to grow taller before the age of 30, and the height may not increase too much, so it is called "slowly leisurely". Only after the age of 30, a man will stop growing and his height will be fixed.

"Women have done their best when they are 18 years old" means that most female friends will not continue to grow in height after they are 18 years old, and "women will turn back after they are 18 years old", which means that women will not only decline in height, but even regress little by little in the future.

Then why can men grow up at the age of 30, and women 18 will not grow up, or even go backwards? This statement is not sexist. In fact, a large part of it is based on science. The height growth of women is not as big as that of men, which is determined by physiological genes and has nothing to do with gender discrimination.

In fact, from a scientific point of view, some studies show that men will not continue to grow in height until they are 25 years old at most. Therefore, the phrase "men are slow to respond in their thirties" is actually somewhat exaggerated. Of course, "a woman loses her mind at the age of eighteen" is also an exaggeration.