How much does the human brain weigh?

Although the human brain is only about 2% of total body weight, it consumes about 20% of the body's total energy intake.

human brain

The human brain weighs on average between 1.3 and 1.5kg.

The study of the brain and its properties, including weight, has become one of the most active areas in modern science. Brain weight can vary depending on an individual's age, gender, and overall health. Knowing the weight of the brain helps scientists in studying various diseases and conditions such as dementia, schizophrenia, and even autism. However, weighing the brain is a complicated procedure that is usually only done after death and requires specialised skills and tools.

Last Updated on 29.09.2023

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