Weakness and Aches in Muscles and Joints

Thyroid hormone deficiency shifts the metabolic switch to catabolism, which occurs when the body breaks down bodily tissues such as muscle for energy. Muscle strength declines during catabolism, perhaps contributing to feelings of weakness. Aching can result from the breakdown of muscular tissue. Everyone experiences weakness from time to time. People with hypothyroidism, on the other hand, are twice as likely as healthy people to feel weaker than usual. Furthermore, 34% of people with hypothyroidism have muscular cramps in the absence of recent exertion.

In one trial of 35 hypothyroid patients, supplementing low levels of thyroid hormone with a synthetic thyroid hormone called levothyroxine enhanced muscular strength and lowered aches and pains when compared to no therapy. Another study found that individuals having thyroid replacement saw a 25% increase in their sense of physical well-being. Weakness and pains are common after vigorous activities. However, new, and especially increasing, weakness or discomfort is an excellent cause to consult your doctor.