Studies conducted especially in the 1980s and 1990s found findings that left-handed people live shorter lives. Do you think such a thing really exists?
Some studies on left-handedness and life expectancy show that left-handed people Lives shorter than right-handed people He found it.
Without making the left-handers any more worried Let’s tell the truth of the matter…
According to some studies conducted in the 1980s, left-handed people live shorter lives.
In a study conducted by Diane Halpern and Stanley Coren in 1991, left-handers had more weight than right-handers. It was claimed that he lived approximately 9 years shorter But this research received a lot of criticism.
Why did the research receive criticism?
The study collected data through surveys of older people. Naturally, left-handedness is not very common in older people. right-handed people more It contained.
For this reason Randomness was not ensured in sample selection and it was claimed that the results were affected.
Later, more recent research was conducted.
Halpern and Coren’s findings did not align with subsequent research. It was studied with a larger sample and No significant relationship was found between left-handedness and lifespan.
Since left-handedness is a feature of the brain that determines which hand is more dominant, it occurs with a combination of genetic and environmental factors, but these relationships have a significant impact on lifespan. It has no direct effect.
In short, when we look at the general evaluation of the scientific literature, it seems that being left-handed has no effect on life expectancy. There is no significant effect we can see. One should not be immediately deceived by the wrong conclusions resulting from the methodological errors of old research!
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