Which of the following is NOT one of the human senses?

Balance, while an important function for the human body, is not classified as one of the traditional five senses, which include taste, sight, hearing, touch, and smell. The five senses are specifically responsible for perceiving different types of stimuli from the environment, enabling us to interact and respond to our surroundings.

Balance is controlled by the vestibular system within the inner ear, which helps maintain equilibrium and spatial orientation. This system does not fall under the category of senses that provide direct sensory information like the other options do. For example, taste allows us to perceive flavors, sight involves vision and the perception of surroundings through light, and hearing enables us to detect sound waves. Thus, while balance is essential for physical coordination and stability, it is considered a separate function rather than one of the classic human senses.