The adult human brain weighs approximately 3 pounds (1,300-1,400 grams).
While the average weight is around 3 pounds, there can be slight variations depending on individual factors such as body size and overall health. The brain constitutes roughly 2% of a person's total body weight. To put it in perspective, here's a comparison:
| Brain Type | Approximate Weight |
|---|---|
| Adult Human | 3 pounds (1300-1400g) |
| Elephant | ~13 pounds (6000g) |
It is important to note that brain size and weight are not directly correlated with intelligence. Factors like the complexity of neural connections and overall brain function play a more significant role in cognitive abilities.
