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There has also been a study conducted on prisoners. What was discovered was that among the inmates subjects of study, the lesser the level of vocabulary, the poorer the behavior. which simply means that the inmates with less vocabulary arsenal have the tendency to be aggressive ,.
Although the study has been conducted on inmates, the question of vocabulary applies to all humans .
Conversely , we all may have noticed that those who are great communicators are also great leaders and vocabulary is factor of great communication skills.
It is a simple test of truth that you can attest to see the transformation.
Simply you can only comprehend , you can only translate what you see, hear, or even feel through the means of vocabulary, also you can only convey your inner feelings and thoughts using vocabulary.
By taking active engagement to increase your vocabulary, your vision of the world would completely be transformed.