**5. The personal health benefits for multilinguals**

#### **5.1 Sharpens the mind**

Multilingual people are better at observing their environment, according to a study from Spain's Pompeu Fabra University. Anything useless or dishonest is immediately detected by polyglots. Trilingual are better at spotting false information than their monolingual counterparts. Learning a new language not only sharpens the mind, but it also causes it to grow. The bilingual brain's cortical thickness, which is often associated with higher intellect, is only affected when language learning occurs later in life, after gaining proficiency in the first language, according to a study by McGill University, [21] titled "Age of language learning alters brain anatomy."

The study discovered that learning a second language later in life has a higher impact on brain structure growth. As cited in a study from Georgetown University Medical Center, [22], multilingual speakers who use both languages often had greater grey matter in the brain regions important for attention, inhibition, and short-term memory.

#### **5.2 Improves decision-making**

Multilingual persons have an easier time making decisions, based on a study from the University of Chicago, [23]. A language student must not only acquire the norms and vocabulary of a new language, but also its subtleties and regional phrases. The learner of a language must continuously assess appropriateness and hidden meanings. Multilinguals are more confident in their decision-making choices as a result of this experience, not only in their language use, but in all aspects of their lives. Because multilingual persons are better able to pick up on nuances and subtleties in any given circumstance, polyglots have a greater understanding of the situation's intricacies. Multilinguals may make more sensible decisions as a result of this. Monolingual people, on the other hand, are more likely to make decisions based on feelings.

#### **5.3 Helps to improve the first language**

"One's can never grasp one language unless he/she understand at least two," stated Geoffrey Willans [24]. Learning a new language really improves one's understanding of his/her own tongue by making him more aware of its laws and nuances. When terminology like conjugation, syntax, and sentence structure become commonplace while learning a new language, people start applying them to their native tongue and considering its underlying structure. While most of the people's first language is learned through intuitive absorption, learning a new language involves intentional learning. One's may come to think about the first language in different ways when learning a new language.

One's may improve his/her writing, speaking, and communication skills by improving understanding and respect of his/her native language. Because language speakers are proficient at separating meaning from distinct sounds, people have a superior ear for listening.
