The transmission of data from one computer to another, or from one device to another. A communications device, therefore, is any machine that assists data transmission.
In dogs, thyroid disease is almost always hypothyroidism. Hyperthyroidism (overactive thyroid) occurs in cats but is not typically seen in dogs. Unfortunately, an overactive thyroid in a dog is usually a sign of thyroid carcinoma, a cancerous thyroid tumor.
Physical symptoms may include tachycardia, muscle contractions, difficulty breathing, low blood pressure, weak pulse, fainting, swelling in the brain, and obvious seizures. Some dogs will exhibit mental behaviors that are out of the ordinary, including symptoms of obsessive and compulsive behaviors.