Among the results are lower average intelligence and impaired health
Muslim culture still practices inbreeding and has been doing so for the better part of 1400 years. Consanguineous marriages were originally sanctioned by Islam’s prophet Muhammed, who had a very liberal view on men’s sexual relationships. In addition his many sex slaves, he married several cousins, the divorced wife of his own adopted son and the six year old Aisha, with whom he had sex with when she was nine.
A rough estimate shows that close to half of the world’s Muslims are inbred as a result of consanguineous marriages. In Pakistan, 70 percent of all marriages are between first cousins – children of siblings – and in Turkey the share is 25-30 percent.
Statistical research on Arabic countries indicates that up to 34 percent of all marriages in Algeria are blood-related as are 46 percent in Bahrain, 33 percent in Egypt, 80 percent in Nubia (the southern part of Egypt), 60 percent in Iraq, 64 percent in Jordan, 64 percent in Kuwait, 42 percent in Lebanon, 48 percent in Libya, 47 percent in Mauritania, 54 percent in Qatar, 67 percent in Saudi Arabia, 63 percent in Sudan, 40 percent in Syria, 39 percent in Tunisia, 54 percent in the United Arabic Emirates and 45 percent in Yemen. According to Dr. Nadia Sakati of King Faisal Specialist Hospital in Riyadh, 45 percent of married Arab couples are blood-related. The fact that many of these couples are themselves children of blood-related parents increases the risk of negative consequences.
The number of blood-related marriages is lower among Muslim immigrants living in the West.
Among Pakistanis living in Denmark the number is down to 40 percent and it is 15 percent among Turkish immigrants. This may be due to the fact that immigration rules make it difficult to import family-related brides. Another factor may be better information on the risks connected with blood-related marriages. Because of better human rights protection it is also more difficult for traditional Muslim families to force their children to marry within the family.
In spite of the lower percentage of consanguineous marriages among Muslims living in the West, at least 55 percent of Pakistanis living in the United Kingdom are married to a first cousin. This is thought to explain why British Pakistani families are at least 13 times more likely than the general population to have children with recessive genetic disorders – often resulting in serious genetic diseases.
Several studies show that, on average, children of consanguineous marriages have lower intelligence than children of non-related parents. The average intelligence quotient, IQ, in any age group is 100. Depending on the theoretical basis, the line between normal intelligence and low intelligence is 90 or 85. Below 70-79 is categorized as mild disability, 50-69 is moderate disability. Significantly more low-IQ children drop out of school and remain unskilled workers throughout life.
There are many studies on the intelligence effects of inbreeding among cousins. One study from Bihar, India, on Muslim children living in suburban areas, shows that while outbred offspring have an average IQ of 95, inbred children have an average IQ of 79, which puts them in category of people with “low intelligence” having special needs in schools, difficulty handling simple job tasks and completing a basic education. The study also shows the social profiles like visual fixation, social smile, sound seizures, oral expression and hand grasping are significantly delayed among the newborn inbred babies. A decrease in the ability to understand and react to social interaction is known to have a negative influence on children’s development, including social skills and empathy, later in life.
Other studies reach similar conclusions, also when adjusted for socioeconomic status. The cognitive consequences of Muslim inbreeding may explain why non-Western immigrants are more than 300 percent more likely than native Danes to fail the Danish army’s intelligence test. It may also be part of the explanation why two-thirds of school children with Arabic backgrounds are illiterate after 10 years in the Danish school system. The connection between low intelligence and a lack of ability to be self-supporting is well established. The extreme lack of scientific and social contributions from the Muslim world may be another result of inbreeding. While 184 Jews have received the Nobel Prize for their scientific, social and artistic contributions to the world, only 10 Muslims have had this honor.
Since 1901 Jews have received 34 percent of all Nobel Prizes. The world Jewish population in 2012 is approximately 14 million whereas the total number of Muslims is estimated to number 1.5 billion.
The risk of stillbirth doubles when parents are first cousins. A study comparing Pakistani children of consanguineous marriages with Norwegian children shows a 50 percent higher risk that babies die during birth. Infant mortality among the inbred Pakistani children was more than double that among the Norwegian children. Deaths due to disorders such as cystic fibrosis and spinal muscular atrophy were 18 times more common among the Pakistani children and deaths due to multiple malformations, which may be part of unrecognized autosomal recessive syndromes, were 10 times more common.
Other research concludes that inbred people have a higher risk of developing mental disorders such as depression and schizophrenia. The practice of consanguineous marriages in Muslim families may thus explain why more than 40 percent of the patients in Denmark’s Sct. Hans Hospital for the criminally insane and 70 percent of the inmates in Danish youth prisons have immigrant backgrounds.
The consequences of consanguineous marriages may also bring us closer to an understanding Islamic terrorism. One study suggests that many suicide bombers are suffering from depression. Among some Muslims their actions are considered a socially acceptable way of committing suicide in order to end mental torment.
A study from Kabul, Afghanistan, based on autopsies of the remains of suicide bombers, shows that close to 90 percent were suffering from severe illnesses or deficiencies such as blindness, cancer, missing limbs or leprosy. Many Muslim societies, including that of Afghanistan, have a low social acceptance of handicaps and mental illness. Being physically handicapped or mentally retarded often leads to exclusion. Becoming a martyr may be the only chance of achieving social recognition and honor. Some cases of Down’s syndrome may be another unpleasant effect of inbreeding and al-Qaeda has been known to use people afflicted with it. People with low intelligence may also be more easily convinced that Islam, with its promise of 72 virgins to Muslims who die fighting for their religion, is true.
Inbreeding among Muslims has severe social implications both for the Western societies and the Muslim world. According to Danish Social worker Merete Lefelt, “When cousins have children together, they are twice as likely to have a disabled child. … Disabled immigrant children cost Danish municipalities millions. In Copenhagen the number of disabled children … has doubled over 10 years.” She has contacted 330 families with disabled children in Copenhagen and estimates that one-third of her clients have a foreign cultural background. The cost of special education for slow learners consumes one-third of the Danish school budget. This means less money for normal and gifted learners. 51 percent of the children in Copenhagen’s three schools for children with physical and mental handicaps have immigrant backgrounds.
High levels of education may also make it harder for inbred students to finish their studies. Students with minority backgrounds have a significantly higher dropout rate at secondary schools than youths with a Danish background. In business schools, the dropout rate among immigrants is 60 percent, twice as high as among students with a Danish background. Interestingly the dropout among young people with Lebanese or Iranian background is far greater than among people of e.g. Vietnamese background. (Center for Knowledge on Integration in Randers, May 2005 “Youth, education and integration“).
The limited ability to understand, appreciate and produce knowledge as a result of low IQ is probably part of the reason why Muslim countries only produce one-tenth of the World average when it comes to scientific research. In 2003 the world average for production of scientific articles was 137 per million inhabitants, whereas the average among 47 Islamic countries was just 13.