Meanwhile, some people might notice they can no longer tolerate the cold—which is one sign of hypothyroidism, or an underactive thyroid. The condition slows metabolism and triggers a drop in body ...
If a person has hyperthyroidism, these hormones may signal the heart to beat too fast. This may cause a person to develop a rapid and irregular heartbeat. Researchers note that these symptoms may ...
In hypothyroidism (an underactive thyroid), common symptoms include fatigue, weight gain and feeling cold. This can result from conditions such as Hashimoto’s disease, a chronic autoimmune ...