There is no difference in life expectancy between left and right handed people. There was a controversial study done in 1980 by Halpern & Coren that suggested left-handed people had an average life expectancy of 9 years less than right-handed people. However, data was based on second-hand information: surveys from the next-of-kin of recently deceased persons asking about right/left handedness and age of death. They found left-handed average age of death was 66; right-handed average age was 75.
Unfortunately, this study keeps getting quoted even though more recent data has shown their hypothesis is not supported. Second hand survey data is not a sound methodology.
In addition, if a study reports a higher mortality rate (or any other "problem") in left-handers, then it's very important to look at the research design and how the data was analyzed. Simply checking the sample sizes will give a good indication of whether it was a "real" significant difference. If the sample sizes are large, and most studies have sample sizes of 1,000 or more, then there will be a "statistically" significant difference between groups (i.e.: Left versus Right) even if the amount of variance explained by the two groups is very small, which means there is no clinical significance. A statistical significant difference does not mean it has clinical or meaningful significance. Many statistical tests will give a significant difference only because of large sample sizes. Therefore, the measure of explained variance needs to be computed because it is unaffected by sample size.
More recent studies have disputed the notion that left-handed people die earlier. For example, see the study by Aggleton, Bland, Kentridge, & Neave in the British Medical Journal at http://bmj.bmjjournals.com for more information. In addition, for a discussion of the Halpern & Coren study, see the link: http://bmj.bmjjournals.com/cgi/content/full/308/6925/408
(from http://www.drdaveanddee.com/left.html)
There is some research suggesting that left-handed individuals may have a slightly shorter life expectancy compared to right-handed individuals, but the reasons for this are not entirely clear. It is believed that factors such as increased accidents in a right-handed world and differences in brain function may contribute to this trend. However, more research is needed to fully understand the relationship between handedness and life expectancy.
Yes..... Well that's what people and research say.
On average, there is no significant difference in life expectancy between left-handed and right-handed people. Other factors such as genetics, lifestyle choices, and access to healthcare play a more significant role in determining lifespan.
There is no scientific evidence to suggest that being left-handed affects life expectancy. Factors that influence lifespan are diverse and complex, but handedness is not considered to be a major contributing factor.
Most humans are right handed but this may be as a result of centuries of disapproval of left handedness and therefore children were forced to be right handed in case they were accused of being odd or 'of the dark side'. The word sinister means to be on the left in heraldic language. In France a sinistre is a fire started deliberately. It has dark connotations whereas to be dextrous or have dexterity is to be on the right and be quick handed. Left handedness is inherited and along with red hair may be a genetic trait of Neanderthal man.This is of interest but not proven to be true.
Approximately 60-65% of hockey players are right-handed, meaning they shoot the puck with their right hand on the lower part of the stick. The remaining 35-40% are left-handed shooters.
Approximately 10-12% of the global population is left-handed, while the remaining 88-90% is right-handed.
There is no scientific evidence to suggest that being left-handed affects life expectancy. Factors that influence lifespan are diverse and complex, but handedness is not considered to be a major contributing factor.
Yes, a right handed guitar is for right handed people.
They do not. On average, right handed people live 9 years longer than them.
Another word for right handed people is "dextral" and For left handed people "sinistral"
Approximately 60-65% of hockey players are right-handed, meaning they shoot the puck with their right hand on the lower part of the stick. The remaining 35-40% are left-handed shooters.
Most people are right handed & fewer people are left handed. Some people even think it's better to be right handed! But the truth is, it really doesn't matter. So if you're left or right handed...Both of them are good!
There is no record of the 'handedness' of the Mormon pioneers, but we can assume that most were right handed simply because most people are right handed.
The ratio of left handed people to right handed people is 1:10 and there are around 6,692,030,277 in the world, so that means that around 6 022 827 249 right handed people.
96% of people are right handed
The ratio of left handed people to right handed people is 1:10 and there are around 6,692,030,277 in the world, so that means that around 6 022 827 249 right handed people.
On average, right-handed people live about nine years longer than left-handed people.
believe it or not right handed people live longer then left handed people (on this juice lid it said: left hand people die 9 or 6 years earlier then right handed people) dont worry the people who are left hand im with u...im left handed to