1. Here are some fascinating human facts: Humans are the only creatures capable of blushing. Blushing is a human-specific involuntary physiological response. The human brain has approximately 100 billion neurons. Neurons are the basic building blocks of the nervous system that transmit information throughout the body. The fat in the human body is enough to manufacture seven bars of soap. Fat is an essential component of the human body, serving as a source of energy storage and insulation. Humans are the only creature capable of communicating through language. While most creatures communicate in some way, humans are the only ones who employ complicated languages. Humans have a distinct walking style. Humans, unlike other animals, have a particular walking stride that comprises a swinging motion.