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Monday, March 19, 2018

The scientists said, what are the implications of later fatherhood

An international team of researchers found that people born to young fathers are more likely themselves will not leave too many offspring. The specialists offer two explanations to how the age of the father affect future fertility.

photo: pixabay.com

In the course of his research assistants gathered and analyzed existing information about the population of Canada, Germany and Sweden in 1670-1850 the years as well as residents of Sweden who were born after 1832. Scientists have got access to the data affecting more than 1.4 million people. The authors have made allowances for factors such as age of mothers and the content in the atmosphere of substances that can affect fertility. The results showed that people born from fathers who at the time was more than 35 years, later left less their own children.

Experts suggest that the revealed trend can be explained from a physiological and from a psychological point of view. The first explanation is that in sperm with age, accumulates mutations, which in turn can affect the fertility of the next generation. On the other hand, it is important that the late child, especially if he is not the first, the father may be insufficient attention, from which sons and daughters can experience less need to have their own offspring.

The study was published in the journal Proceedings of the Royal Society B.

Earlier, another group of scientists concluded that men over the age of 45 years are more likely than younger children are born suffering from autism or predisposition to schizophrenia. According to the same study, no less for future children affects the way of life that a man leads, in particular, how often does he drink alcohol, and correctly powered.

It should be noted that not all researchers encourage people to breed as early as possible. For example, last year experts from the society of max Planck and the London school of Economics concluded that late babies are born more developed in terms of education, health and other aspects of the world that is to be them is “cheaper” than the earlier a child from the same parents.


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