Explaining the phenomenon of human brain developing large size

In terms of body size correlation, the human brain is considered to be very large compared to other species and consumes up to 1/5 of the energy in the human body. The scientific community has sought to explain this but there is no satisfactory answer.

The previous hypothesis suggests that increasingly complex social interactions are the reason why the human brain is getting bigger and bigger, but a new study published in the May 23 issue of Nature shows otherwise.

The growing human brain is mainly reacting to stresses in the living environment, forcing people to think of creative solutions to get food and shelter.

The large size of the human brain probably originates from cultivating the accumulation skills and solving ecological problems.

To conduct research, scientists from St. John's University Andrews (Scotland) relied on a computer community simulation and relied on it to assess the level of interaction between individuals and with living conditions and social conditions.

The results show that people face the environmental challenges themselves such as finding and hoarding food for up to 60% of brain size increase, another 30% comes from working together to cope. , The remaining 10% is due to competition between groups.

Through the study, the scientists determined that the large size of the human brain probably originates from cultivating accumulated skills and solving ecological problems rather than from social training. Assembly

Also from this study, scientists believe that some complex aspects of society may be the consequence rather than the cause of the large size development of the human brain.

Since the time of the ancestors of mankind, the Southern male gibbon living from at least 3-4 million years ago until the genus of Homo intelligent, brain size has tripled.

In order to nourish such a large brain, human physical development takes place slowly in primary childhood, and therefore human childhood is much longer than other animals.