Experts concluded in their recent study that nearly 50 percent of the Muslim population were offspring of generational inbreeding.
That means that most of them are a product of incest in some form. The fact that they were prohibited by their religion to marry a non-Muslim, it has resulted in them to marry their close relatives were most of them were having an incest marriage as close as to their first-degree relatives.
In a study of 20 Muslim countries, an average of 49.8 percent of all marriages was to first cousins. The most disturbing aspect of this statistic is that it doesn’t even include marriages of double first cousins, first cousins who are the offspring of two siblings marrying unrelated siblings of another family. Pakistan, which boasts roughly 70 percent of citizens marrying first cousins, was also included, which bumped the number up to a full percent.
Danish psychologist Nicolai Sennels believes that after studying the behavior of Muslim inmates, there is most definitely a risk of lower intelligence, violent temperament, and cognitive development associated with their inbreeding.
Sennels explains that the risk of having an IQ lower than 70 goes up 400% in children who are inbred.
“Because Muslims’ religious beliefs prohibit marrying non-Muslims and thus prevents them from adding fresh genetic material to their population, the genetic damage done to their gene pool since their prophet allowed first cousin marriages 1,400 years ago are most likely massive,” he states.
According to a study published by Danish Professor Anne-Marie Nybo Andersen in 2009, this repetitive inbreeding not only increases the risk of mental and behavioral disorders but also infant mortality.
“One study estimated infant mortality at 12.7 percent for married double first cousins, 7.9 percent for first cousins, 9.2 percent for first cousins once removed/double second cousins, 6.9 percent for second cousins, and 5.1 percent among non-consanguineous progeny.”
This can be dangerous because the offspring are more prone to defects, disability, and worse is a high risk of infant mortality.
A common justification for prohibiting incest is avoiding inbreeding: Offspring of biologically related parents are subject to the possible impact of inbreeding. Such offspring have a higher possibility of congenital birth defects because it increases the proportion of zygotes that are homozygous for deleterious recessive alleles that produce such disorders. Because most such alleles are rare in populations, it is unlikely that two unrelated marriage partners will both be heterozygous carriers. However, because close relatives share a large fraction of their alleles, the probability that any such rare deleterious allele present in the common ancestor will be inherited from both related parents is increased dramatically with respect to non-inbred couples. Contrary to common belief, inbreeding does not in itself alter allele frequencies but rather increases the relative proportion of homozygotes to heterozygotes. However, because the increased proportion of deleterious homozygotes exposes the allele to natural selection, in the long run, its frequency decreases more rapidly in inbred population. In the short term, incestuous reproduction is expected to produce increases in spontaneous abortions of zygotes, perinatal deaths, and postnatal offspring with birth defects. This also means that the closer two persons are related, the more severe are the biological costs of inbreeding. This fact likely explains why inbreeding between close relatives, such as siblings, is less common than inbreeding between cousins.
There may also be other deleterious effects besides those caused by recessive diseases. Thus, similar immune systems may be more vulnerable to infectious diseases.
For example, the BBC reports that British Pakistanis are 13 times more likely to give birth to children with genetic disorders than their fellow Britons. Although they only produce 3 percent of Britain’s births, they make up nearly one-third of all British children with such birth defects.
Birmingham Primary Care Trust reports that one in ten children from first cousins in the UK city either dies in infancy or develops a serious disability because of their genetics.
Of course, many apologists will tell you that while marrying cousins is allowed under Islam, the practice isn’t encouraged in any way by the religion. This is a lie. Every action performed by the Islamic Prophet Muhammad serves as an example by which Muslims are to live as closely as possible to who Allah considered to be the “perfect man.”