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.........

Sprintcyclist wrote on Jan 6^th, 2015 at 11:23pm:
I doubt she'll be inbreeding anytime soon.