The main components of high-voltage electric transmission lines and associated facilities include: Transmission towers are the most visible component of the power transmission system. Their function is to keep the high-voltage conductors (power lines) separated from their surroundings and from each other.
It is not surprising then that some of the symptoms of hyperthyroidism are nervousness, irritability, increased perspiration, heart racing, hand tremors, anxiety, difficulty sleeping, thinning of your skin, fine brittle hair and weakness in your musclesâespecially in the upper arms and thighs.
If the body does not produce sufficient amounts of the thyroid hormone T4, symptoms of underactive thyroid result. Among these symptoms are fatigue, depression, weight gain, hair loss, feeling cold often, constipation, brittle or splitting nails, memory problems, and dry skin.