The average age of getting married is rising as people spend more time in school. Consequently, many are also delaying having children. It is common knowledge that there's a link between maternal age and offspring health, however, a new study has found that the father's age is also linked to his offspring's risk of developing early psychosis.
These days, many people are spending more time in school, thereby delaying marriage and having children. The average childbearing age has risen from 27.2 in 1991 to 32 in 2017. The average age of fathers increased from 30.3 in 1991 to 34.5 in 2017. A recent National Taiwan University and Chinese Medical University study found that a child's risk of developing early psychosis increases as the father's age increases.
If the father's age is over 30, the risk of his offspring developing early psychosis increases. If the father's age is over 50, the risk of his offspring developing the illness is 60 to 70 percent higher than that of the children fathered by men aged 25 to 29.
Moreover, an analysis of a foreign study on the link between the age of fathers and the health of their offspring shows that when a father's age is between 30 and 34, the risk of the next generation suffering from psychosis increases by 6 percent. If the father's age is over 50, the risk increases by 66 percent. After the multinational NTU and CMU research team controlled fathers' genetic risk of mental illnesses, it found that the offspring's risk increases by 30 percent with every 10-year increase in the father's age.
It's related to the father's own genes. If his parents don't have them, that is to say that they didn't come from paternal grandparents, then small errors occur during the cell division process because the age is too high.
The Ministry of Health and Welfare says it is aware of the link between delaying marriage and having children and the health issues of offspring and is treating this as an urgent public health issue.