Reading, talking, and listening to someone speak involves the:

Reading, talking and listening to someone speak involves one or more of the sensory organs of a human. Reading involves eyes, talking involves tongue while listening to someone speak involves ears. Other sensory organs include skin and nose. The sensory organs are most important parts of humans in order to interact with and understand the outer world.

The answer to this question is that the person is experiencing an excessive thyroid secretion. Excessive thyroid secretion is a condition also known as hyperthyroidism. Excessive thyroid secretion can cause rapid heartbeat, anxiety, weight loss, nervousness, and hand tremors. In order to overcome the excessive thyroid secretion a treatment is needed by taking anti-thyroid medications.