Why our brains are so big, and advantages and dis advantanges.

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Why are our brains so big

Introduction

It is true that humans have a darn big brain in relation to the body weight . The human brain is larger than any other primate which walked this planet . In comparison to the earliest human relatives , we have twice the brain size . Most of the neuroscientists such as Stephen Cunnane have implied that the diet of humans is primarily responsible for the size of brain . Since the evolutionary days of human beings , they have consumed

food that was rich in iron , iodine and other minerals that help develop brain . This caused the process of brain expansion of human beings to be initiated . There are more pros of a larger brain size than the cons

Advantages of Large Human Brain

Being the most complex organ of the body , the large human brain does not only provide us with a balance while walking , swimming , driving and running , but also plays other roles . The primary role of the human brain is to house the neurons their communication in the neural network . As many as 15 million neurons interact with each other and exchange information in the form of electrical signals (The Franklin Institute Online

Other scientists have also argued that larger brain size allows better control of the body , limbs and makes the senses work better . Larger brain size has also allows the humans to make the decision between right and wrong . Other animals with smaller brain sizes depend upon...