The brain of the average adult weighs about how many pounds?

The average adult human brain weighs approximately three pounds. This weight can vary slightly depending on factors such as age, sex, and overall body size, but three pounds is a widely accepted estimate for adults. The brain is composed of different types of tissues and structures, including gray matter and white matter, which contribute to its overall weight. Understanding the average weight of the brain is important for various medical and biological studies, as it can relate to brain development, neurological diseases, and overall health.