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.
The thyroid and weight gain. Because patients with an underactive thyroid tend to have a very low basal metabolic rate, one of the most noticeable symptoms of hypothyroidism is weight gain and difficulty losing extra weight. (Sometimes an overactive thyroid can mimic an underactive thyroid by causing weight gain, although this is less common).