According to a huge meta-analysis of studies on the topic, speaking multiple languages<ul><li>Reduces the chances of getting dementia.</li><li>If you get dementia, it slows its onset and lessens the symptoms.</li></ul>

Bilingualism reduces the chances of Alzheimer’s

Studies found those who are bilingual find it much easier to learn a third or fourth language. Even discounting other factors, like differences in IQ, reading abilities or other cognitive aspects, bilingualism is a causal factor in increasing the chances of being able to learn a new language quickly.

It makes learning languages easier

The language you speak helps determine how you interpret actions. You can flip-flop between focusing on the act (such as walking) or the goal of the act (why someone is walking). Bilinguals interpret aspects of the world according to whichever language they are speaking.

Bilingualism helps you see things differently

Bilinguals are likelier to get paid more over the course of their life. An article in The Economist showed that being bilingual would increase your salary by two per cent over 40 years. The effects are more marked depending on what language you can speak. German can boost earnings by 3.8%, and Arabic speakers in the UK have salaries 74% higher, on average.

It can make you richer

Bilinguals have to constantly multitask linguistically. When they have to function in a world outside their first or native language, they have to switch, shift, and process different languages in real-time. However, a study found that bilinguals are better at non-linguistic multitasking too.

Bilingualism makes you better at multitasking

Bilinguals are better at certain executive functions, such as moving between different types of brain activation. For example, in the "Stroop test", you have to read words for colours (like "red" or "orange") that are written in the same or different colours.

It improves certain executive functions

The more a local area, state, or country can speak another language, the greater its economic output. <ul><li>Economists from the University of Geneva estimate one-tenth of Switzerland’s GDP is due to its multilingualism.</li><li>Research by the Rand Corporation argues that learning a second language in the UK could boost the economy from between £9 billion (for Spanish) to £12 billion (for Mandarin).</li></ul>

It can make your country richer, too

Being able to speak another language is sexy. It's exotic, mysterious, and intelligent. Research shows that the most attractive languages are Italian, Portuguese and French. The least attractive were Dutch, German, and Japanese.

It makes you more attractive

Speaking two or more languages comes with a whole host of benefits. A growing body of research has focused on the psychological, economic, and health benefits of being bilingual. Here are ten practical benefits of bilingualism.

Bilingualism is beneficial

Empathy is the ability to relate to someone else and to see things from their perspective. A major research review concludes that acquiring "two languages helps Theory of Mind development, meaning you have the ability to attribute mental states to other people and to predict and explain other people’s behaviour on the basis of those attributed mental states. Entering into a different linguistic system makes it easier to enter another’s mind.

It makes you more empathetic

If you are more empathetic, you'll be more likeable too because the Theory of Mind helps develop prosocial behaviours. Children who develop an advanced Theory of Mind are better at conversations, more socially mature, and often rated as popular in class.

You’ll be more popular

People who are bilingual often will be richer and sexier and have improved cognitive functions. Why not try it?