Pain is an unpleasant sensation that indicates damage to the body or a threat to it due to trauma or illness. Aristotle believed that a person has five kinds of sensations: sight, hearing, smell, taste, touch, but he did not include pain on this list and called it “the passion of the soul”. Pain is perceived by the branched endings of special nerves. There are at least a million such endings in human skin. In addition, an overwhelmingly strong effect on any receptor: visual, auditory, tactile, etc., leads to the formation of a pain sensation in the brain. The highest pain center is located in the thalamus, and it is there that a sensation of pain is formed.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.