10 Fascinating facts about brain

Here are 10 fascinating facts about the brain:

1. Weight and Size: The average adult human brain weighs about 3 pounds (1.4 kilograms) and is roughly the size of two clenched fists.
2. Neuron Count: It contains approximately 86 billion neurons, the cells responsible for transmitting information throughout the nervous system.
3. Energy Usage: Despite making up only 2% of your body weight, the brain uses about 20% of your body’s oxygen and energy supply.
4. Storage Capacity: The brain’s storage capacity is virtually limitless, estimated to be around 2.5 petabytes (or 2.5 million gigabytes), enough to store about 300 years’ worth of TV shows.
5. Speed of Signals: Neurons can transmit signals at speeds up to 120 meters per second (about 268 miles per hour).
6. Water Content: Around 73% of the brain is water, which means dehydration can significantly affect cognitive function.
7. Plastic Nature: The brain exhibits neuroplasticity, meaning it can reorganize itself by forming new neural connections throughout life, especially in response to learning or injury.
8. Dream Factory: During sleep, the brain processes emotions and memories, often creating dreams that can feel vivid and bizarre due to activity in the amygdala and hippocampus.
9. No Pain Receptors: The brain itself lacks pain receptors, so it doesn’t feel pain—surgeons can operate on it while a patient is awake.
10. Unique Fingerprints: Every person’s brain has a unique pattern of folds and grooves (called gyri and sulci), much like a fingerprint.