Left-Handers Day: Amazing facts about lefties

If you're left-handed, then today is a special one for you.

It's International Left-handers Day!

It's a time to celebrate left-handed people and to raise awareness of some of the experiences many of them face in a world designed largely with right-handed people in mind.

Research suggests that between ten and twelve percent of the world's population is left-handed.

Even though being left-handed might mean struggling with right-handed scissors from time-to-time, there are plenty of reasons being a lefty is pretty cool!

Left-hand leaders

Though left-handers make up a small percentage of the world's population, many have had very important jobs.

Several past US presidents have been left-handed, including Bill Clinton and Barack Obama.

Former UK prime minister David Cameron is left-handed, same as famous wartime prime minister Winston Churchill.

Future King of the United Kingdom, Prince William is also left-handed.

William's great-grandfather George VI was naturally left-handed too, but his father George V forced him to write with his right hand.

Prince William is a famous lefty

Left-handed stars

There are a number of famous stars who are also lefties.

Singer Justin Bieber is left-handed, although the very first guitar he picked up was actually a right-handed one. He attempted to play the instrument backwards, although this proved to be a struggle!

Justin's mum ended up buying him a left-handed guitar which he used to learn how to play.

Other celebrities who are left-handed include Oprah Winfrey, Sir Paul McCartney, Lady Gaga and actress Jennifer Lawrence.

Singer Justin Bieber is left-handed

When left isn't right

Just like Prince William's great-grandfather George VI, it wasn't uncommon in the past for left-handers to be forced to use their right hand to do things.

In the UK, left-handed people were historically forced to use their right hands for tasks where they would naturally use their left hand. This still happens in some countries now.

In many parts of the world, the left hand is considered unclean or rude to use. If you're left-handed and visiting places like India, Pakistan, Bangladesh, Indonesia, Nepal and the Middle East, it's thought of as rude behaviour to eat, pick up or hand over things with your left hand.

Even language proves that left-handers get a bad rap.

In French, "gauche" can mean "left" or "clumsy". In English the word 'left' comes from the Anglo-Saxon word 'lyft', meaning 'weak'. "Right" also means "to be right".

Lefties accused of witchcraft!

So, as we know for many cultures, being left-handed is considered to be a bad thing and historically that's been the case too!

Left-handed people have been considered unlucky and even evil - the word "sinister" comes from the Latin word for left.

In Britain in the Middle Ages, lefties were associated with the devil and often accused of the crime of witchcraft, meaning they would get burned at the stake.

Thankfully, left-handers don't have to worry about that these days.

However, there are some things they may struggle with like using certain types of scissors, writing in spiral notebooks, using can openers, or playing the guitar.

Some studies suggest more and more people are left-handed, but that's probably because it was previously seen as such a bad thing so people didn't admit to it.

The left and right side of the brain do different things

The left and right side of the brain

The brain is cross-wired, meaning that the right side controls the left side of the body and vice versa.

Scientists at the University of Oxford say that the brains of left-handed people work differently than right-handed people.

In a study, the brain was monitored in left-handed participants. Scientists say the two sides of the brain were better connected in lefties and more co-ordinated, particularly in the areas that involve using language.

Chris McManus, from University College London, author of the book Right Hand, Left Hand says:

"If you are left-handed you might find yourself with a slightly unusual way your brain is organised and suddenly that gives you skills that other people don't have."

It's often claimed that left-handed people are more likely to be creative and good at art or music. However there is not enough scientific evidence to prove this so far.

However, other famous creative left-handers include: Lady Gaga, Angelina Jolie and Simpsons creator Matt Groening.

This i why Bart Simpson writes with his left-hand.

Simpson's character Bart Simpson is left-handed

How do you become left-handed in the first place?

Northern Irish psychologist Peter Hepper studied several hundred baby scans, when the baby in the womb was sucking its thumb.

About 90% of babies sucked their right thumb and at 12-years-old almost all of those right thumb suckers were right-handed.

Whereas three-quarters of the left thumb suckers became left-handed.

Your genetics are also important.

One left-handed parent means you're more likely to be left-handed. If both parents are left-handed then there's a one in four chance you'll be left-handed too.

As babies, it's quite common for small children to randomly use one hand one day and a different hand the next. But from about two-years-old toddlers tend to prefer using one hand more than the other.

A study revealed three-quarters of babies who sucked their left thumb became left-handed

Why is being left-handed so rare?

Experts don't know exactly why more people aren't left-handed, but one suggestion is something known as social cooperation.

Over thousands of years, communities of people which have shared tools and living spaces have recognised using the same hand makes life easier for everyone when it comes to achieving goals. It means that over time, people using their right-hand for lots of things has become the norm.

Kangaroos use their left hand to groom and eat

Are there any 'left-handed' animals?

Humans are one of the few animals to show a preference between the left and right hand.

Most creatures, even apes, our closest cousins in the animal kingdom show a 50-50 split when it comes to which hand, foot or paw they use the most.

However, left-handed animals include kangaroos, which tend to favour their left paw for things like grooming and eating. Also, studies have shown that 90% of parrots use their left foot to pick things up.

Early humans were left handed too!

Evidence suggests cave men and women were left-handed too

Like the humans of today, most of our ancient ancestors were right handed, but there is evidence that there were left-handed Neanderthals 500,000 years ago.

Back then cave men and women were probably eating raw meat a lot of the time, which is pretty tough on the teeth.

Archaeologists think Neanderthals would bite the meat and use a sharp piece of stone to cut the meat up next to their mouth.

Occasionally the stone would slip...

From the direction of the scratches on their teeth, ten percent of Neanderthals seem to have held the stone cutter with their left hand.

Are you left-handed? Do you think it's given you any advantages or disadvantages? Let us know your thoughts in the comments below!