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.
What is overactive thyroid (hyperthyroidism)? An overactive thyroid (also called hyperthyroidism or thyrotoxicosis) is when the thyroid gland produces more thyroid hormones than normal. The thyroid gland may become enlarged, or contain nodules (lumps) of overactive tissue. This excess thyroid has the effect of speeding up metabolism throughout the body.