A photo from open sources
Scientists from Oxford found rare features in left-handed people in genome and brain structure. Reported by Brain.
Scientists using MRI (magnetic resonance imaging) studied data from 9,000 Britons, as well as the results of DNA analyzes from another 400,000 people, including 38,000 left-handed people.
It turns out that those who write with their left hand are genetically less others are predisposed to developing Parkinson’s disease. However they increased risk of schizophrenia.
In addition, another difference between left-handed people and right-handed people was discovered, which carries the risk of mental illness. At left-handed communication between centers responsible for speech, arranged exactly like that same as schizophrenics and those who suffer from auditory hallucinations. Scientists are in thought, because they can’t to understand what benefit left-handed people give such a feature.
Psychologists previously called for abandoning the retraining of lefties, so how it significantly affects their health.
Scientists still do not know exactly why some people born left-handed. There are various theories, but they are contradict each other or simply disprove the early explanations.
Andrey Vetrov
DNA
