It is not degenerative, and does not affect intelligence or life span.
In addition, he said, such differences are "exceedingly unlikely" to affect intelligence or complex behavioral traits.
snippets are more common in Africans, or that hundreds or thousands of others may also affect intelligence, or that their combined influence might be dwarfed by environmental factors.
Researchers acknowledge that few of the family variables affecting intelligence are well understood, and some argue that peer influences are eventually more significant.
In a written statement proposing a gagging order, Miliband told the court that she "indicated" that the disclosure of CIA evidence "would affect intelligence sharing".
Dr. Tanner suggested then, as Dr. Case and Dr. Paxson did several months ago, that it might be useful to study how development in the womb and early childhood affects intelligence.
Some severe genetic abnormality can, of course, profoundly affect intelligence, sexual capacity, and physical appearance and hence the entire sexual life.
"This problem, which was contained to the N.S.A. headquarters complex at Fort Meade, Md., did not affect intelligence collection but did affect the processing of intelligence information," the agency said.
And that's not all: the infectious parasite carried by cats could also affect intelligence and has been linked to schizophrenia, and some studies suggest it can even raise your chances of being knocked down by a car.
With the rise of inexpensive genome sequencing, they've analyzed the genomes of thousands of people, looking for gene variants that clearly affect intelligence, and have found a grand total of two.
