What is the effect of country temperature on physical maturity?

There is correlation, but not causation, between temperature and puberty in girls. To break it down a bit more, if there is a year-round harvest for the high temperatures in a place with high temperatures, and if this results in access to nutritious food year-round, then girls in that area may experience early puberty. Another hypothesis is that exposure to sunlight at high temperatures may cause early puberty in girls by affecting the hormone melatonin. Even then, it is only a few months before the winter-prime region. But the whole thing is much more complicated. Because there are socioeconomic, dietary, and of course genetic factors behind it.

Because socioeconomic class structure determines who has access to nutritious food, the lower class is more likely to be malnourished than the upper class. Similarly, a balanced and regular diet of the people of an area can play a role in filling the lack of nutrients. Eating habits are again dependent on the culture of each area. Culture is a very broad concept, in which many other factors are included, I didn’t go into that discussion for related reasons. And besides these, there are genetic characteristics. In some families, having maternal aunts with precocious puberty increases the chances of their daughters having precocious puberty too.

One thing is very important to understand here. Just because a girl reaches puberty does not mean she is ready to have sex or have children. Younger girls’ bodies are not ready for sex, but there are many cases of death during sex, and even still happening. The same reason increases the risk during pregnancy or childbirth, which increases the chances of death of mother and child. Beyond the physical aspects, there are many psychological, emotional, and maturity-related aspects. The period of puberty is very critical and challenging for girls During this time, girls are more sensitive to handle the changes within themselves. In this, the thought of husband and family creates additional stress on them, which hinders their normal development. So even after puberty begins, girls take many more years to mature physically and mentally.

With these factors in mind, people in each region or country determine the minimum age for marriage (although some may be sexually active before marriage). Maternal mortality, infant mortality, and girls’ physical and mental development or overall maturity are given the most importance behind this age determination.

I hope I have explained why temperature and puberty are correlated, but it is wrong to call it causation.