(And no, there’s no such thing as a northpaw!) Why Are Some People Left-handed and Others Right-handed? Scientists aren’t sure what causes left-handedness. Genetics plays a role, but it’s not the whole story. For example, identical twins have the same DNA, but it is common for...
A left-handed baseball pitcher is called a southpaw. (And no, there’s no such thing as a northpaw!) Why Are Some People Left-handed and Others Right-handed? Scientists aren’t sure what causes left-handedness. Genetics plays a role, but it’s not the whole story. For example, ident...
Commercial Eye Like we said, the world is made for the right-handed man: school desks, golf, computer mice, and more are just sometimes easier to use with your right-hand. For this reason, most lefties eventually learn to use both. Let's face it, we're awesome. ...
Many popular anecdotes tell how and why some people are left-handed, but the true facts are even more interesting.
Past research sets the stage for promising avenues of study that will reveal newfactsabout left-handedness in the twenty-first century. For example, the mapping of the human genome and the ability to scan specific genetic sites will eventually lead to a new understanding of the genetics underlyi...
BonusFacts: While most people’s brains have the left side handling language, in 1 in 7 lefties, both hemispheres process language. This is in comparison to righties where 1 in 20 have both hemispheres processing language. The idea that people who are left handed are naturally disposed to evi...
One theory is that handedness (hand preference) could be a result of genetics. Scientists say that there are two genes(基因)associated with handedness. One is the D gene. It is more frequent in the population and promotes(促成)right-hand preference. The other is the C gene. It has the...
They found that right-and left-handedness is determined by genetics. If a person has the gene for right-handedness, that person will be right-handed. People who do not have that gene, however, can be either left- or right-handed. There is no specific gene for left-handedness.Right-...
How is being right-handed or left-handed related to the brain? “Left-Brained” and “Right-Brained” People A widespread myth suggests that some people, whose left hemisphere is dominant overall, are more quantitative, logical, and analytical, while right-brained individuals are more emotional...
who handed out personalized horoscopes to a classroom of students and asked them to rate the accuracy of the descriptions. Almost without exception, the students rated the horoscopes as highly accurate. Randi then asked the students to exchange horoscopes, revealing that they had all received the ...