Left Handed Research

Since Fatin claims that left handers have a shorter lifespan that right handers.Therefore,me,being lefty decided to check out the reliability of this statement.Along the way,i found a list of incovinience left handers faced in their lives and found it really true.

Demographics
Approximately 7 to 10 percent of the adult population was left-handed. Studies indicate that left-handedness is more common in males than females.

Some random psychologist said that left handed people live 10 years shorter than right handed people. Before it was disproved by a proper survey (though lefties do live fractionally shorter), this info managed to circle the internet several times and a lot of lefties were scared by it.

Accessibility of implements and skills
Left-handed people are sometimes placed at a disadvantage by the prevalence of right-handed tools in society. Many tools and devices are designed to be comfortably used with the right hand. For example, (right-handed) scissors, a very common tool, are arranged so that the line being cut along can be seen by a right-handed user, but is obscured to a left-handed user. Furthermore, the handles are often molded in a way that is difficult for a left-hander to hold, and extensive use in such cases can lead to varying levels of discomfort. Most importantly, the scissoring or shearing action - how the blades work together (how they are attached at the pivot) - operates correctly for a right-hander, but a left-hander will tend to force the blades apart rather than shearing the target substance
The computer mouse is sometimes made to fit the right hand better. Many computer installations have the mouse placed on the right side, making it awkward for left-handers to use without moving the mouse to the other side of the keyboard. Some mouse drivers and operating systems allow the user to reconfigure the mouse buttons to reverse their functions. However, being left-handed does not always mean the person uses the mouse on a computer with the left hand; many left-handers can use the mouse right-handed because they learned it that way from the start. It can be said that this is an advantage as one can use the mouse with their non-dominant hand, leaving their left to do tasks such as taking notes.

Handwriting
It can be difficult for left-handed children to learn to write if the teacher does not take the student's left-handedness into account. In fact, even in the later 20th century, some UK schools were discouraging children from writing with their left hand, often seriously affecting the child's development (Hansard 1998). When properly done, left-handed writing is a mirror image to that of the right-hander, making the teaching process confusing for the right-handed teacher of a left-handed student. The result is that many left-handed children learn to write with their hand curled around the pen so that it can meet the paper at the same angle as the right-hander, rather than simply tilt the paper the opposite way. Once this habit is formed, it is difficult to break. This curling of the hand results in the heel of the palm being placed behind the writing, forcing the writer to lift it off the paper and making the grip even more awkward. In addition, constantly lifting and replacing the hand over fresh ink often causes smudging, causing problems for many left-handed students, especially in exam situations. Ink is also rubbed on to the hand, causing an inky hand. When the left hand is held correctly, it is below the writing, as is typical for right-handers.

Advantages as well....

Left-handedness and intelligence
In his book Right-Hand, Left-Hand,Chris McManus of University College London argues that the proportion of left-handers is rising and left-handed people as a group have historically produced an above-average quota of high achievers. He says that left-handers' brains are structured differently in a way that widens their range of abilities, and the genes that determine left-handedness also govern development of the language centers of the brain.

McManus also says that the increase in the 20th century of people identifying as left-handed could produce a corresponding intellectual advance and a leap in the number of mathematical, sporting, or artistic geniuses.

In sports
Left handed players in some sports have an advantage because of their relative rarity. Their opponent is therefore not so used to playing against a left-hander. This can be a factor in left-handers success in sports such as tennis & fencing. Tennis player Rafael Nadal, despite being right-handed, plays left-handed after being encouraged to do so by his coach for this very reason.