They say knowledge is power but they never mentioned how cute and cuddly knowledge could be. The neuron (brain cell) is basically the messenger from the body to the brain, sending and receiving signals in less than a second. Fun facts about neurons. They’re A LOT of them. Approximately 100 billion neurons make up the big smart brain of yours. Its unfathomable that just one of these little guys can go as fast as 268 km/hr. Now that is impressive. Neurons are smaller than the period at the end of this sentence, however, our soft, cozy, and squirmy plush neurons (brain cells) are a bit larger, measuring 8 x 10 x 2 inches. Who knew the brain could be so stinking adorable! These soft lovable neurons (brain cells) are perfect for anyone of all ages. Designed in Wisconsin. Imported. Founded by a team of nerds.