The brain is still a mystery to researchers, and some have just plain given up on uncovering new secrets, especially brain farts. However, did you know that “in the first decade of life, a child’s brain forms trillions of connection”? If not, continue reading to see that fact and more.

10. Speed

9. Grain of Sand

8. Yawn

7. Neurons

6. Fluids

5. Languages

4. Electricity

3. Fat

2. Oxygen

1. Stars