1. The human brain is the most complex structure in the known universe. It contains about 100 billion neurons and 100 trillion connections between them.
2. The brain is about 2% of the body's weight, but it uses 20% of the body's energy.
3. The brain can store an almost unlimited amount of information. Some estimates suggest that the brain can hold up to 2.5 petabytes (2.5 million gigabytes) of information.
4. The brain is constantly changing and rewiring itself. This process, known as neuroplasticity, allows the brain to adapt and learn new skills throughout our lives.
5. The brain is more active at night than during the day. This is because the brain is busy processing and consolidating the information it has gathered throughout the day while we sleep.
6. The brain is not fully developed until around the age of 25. This is why teenagers and young adults engage in risky behaviors, their brains are still developing the ability to make sound decisions.