How many children can a man have in his lifetime?

According to physiological studies, women can spend half their lives reproducing. Including pregnancy and recovery time, it can take a year or more for each birth.

Scientists estimate that women are likely to become pregnant 15 times in their lifetime. Depending on whether they are twins, triplets, or more, the average woman can give birth to between 15 and 30 children, according toBusiness Insider.

The woman who gave birth to the most children recognized by Guinness World Records is Mrs. Feodor Vassilyev who lived in Russia in the 19th century. She gave birth to 69 children in 27 pregnancies.

Meanwhile,A man's lifetime limit of children is much greater, because he doesn't have to spend time pregnant and recovering.

Sultan Moulay Ismail of Morocco in the 17th century married four wives and 500 concubines. They had 1,171 children.

Genghis Khan of Mongolia also fathered thousands of children. During his conquests across Asia and Europe in the 13th century, historians estimate he left behind between 1,000 and 2,000 children.

Researchers found that in the Y chromosome of the modern population, about 16 million men living in the lands that were once part of Mongolia carry some of Genghis Khan's blood.

Researchers say that if a man wants to maximize his fertility, he will have to constantly change partners. However, men cannot reproduce indefinitely. As they age, their sperm become weaker and more defective.

Men over 50 who have sex with a younger woman are 38% less likely to conceive than men under 30.

What historians know about Genghis Khan is not enough to draw any conclusions. Documentation about the children of King Moulay Ismail also stops at 32 years of his life.

The number of children a man can have is still a mystery, but it is certainly not less than 1,000.