The longer it takes to diagnose, the more significant the impact on quality of life. While tremors, stiffness, and muscle ...

While dogs are not common carriers of bird flu, they can become infected, especially if exposed to sick or dead birds.

Hyperthyroidism happens when the thyroid produces too many hormones, speeding up metabolism. Symptoms like weight loss and heart palpitations can lead to serious complications if untreated. Read on to ...

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Newsweek's live blog is closed.

Charlie Rolstone suffered “subtle” symptoms — including migraines and motion sickness — before a seizure led to her being ...