Semen Quality Linked to Intelligence : Discovery News
"Dec. 15, 2008 -- Past studies have linked an individual's intelligence to his or her height, cardiovascular function and longevity, but now a new study suggests semen quality may be added to that list, since it also appears to help predict the level of a man's intelligence.
She and her colleagues analyzed data gathered on thousands of U.S. Army veterans enrolled in the Vietnam Experience Study conducted by the U.S. Centers for Disease Control in 1985. Out of 4,462 study participants, 425 provided semen samples that were scientifically evaluated at the time.
The men also took five I.Q.-measuring tests. Arden's team used computer analysis to study that data, along with the semen determinations. The researchers found that a man's intelligence positively correlated with three key indicators of his semen quality: sperm concentration, sperm count and sperm motility.
The findings have been accepted for publication in the journal Intelligence.
Like beauty, Arden believes intelligence is both a fitness and a summary trait, meaning that our perception of it is comprised of many different components. Braininess is additionally influenced by a person's environment, quality of education, health care, dedication to studies, accidents and illness that could impair thinking and more."