Rock 127 (detail 1, 2016, Canon 5D)

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The human body is a complex and fascinating entity that has captivated scientists and philosophers for centuries. The human brain is an intricate organ that contains billions of neurons, each one connected to thousands of others through synapses that transmit electrical signals at speeds of up to 200 miles per hour. The brain itself is protected by the skull, which houses a delicate balance of fluids, including cerebrospinal fluid and blood, that cushion the brain from external shocks. The human heart is a vital organ that pumps blood throughout the body, supplying oxygen and nutrients to tissues and organs. The heart beats approximately 3 billion times in an average lifetime, pumping around 1.5 million barrels of blood. The lungs are responsible for exchanging oxygen and carbon dioxide through the process of respiration. Human skin is the largest organ in the body, accounting for approximately 15% of total body weight. It protects the body from external damage by providing a barrier against bacteria, viruses, and other pathogens that could cause infection or disease.