This essential mineral is needed by your thyroid gland to produce hormones that regulate your body's metabolic rate. If you ...

Salmon have been spotted in upstream tributaries of the Klamath River at the California-Oregon border just two months after hydroelectric dams were removed, allowing the river to follow ...

Fluorosis, a condition caused by excessive fluoride exposure during childhood, is often cited as a reason for alarm. However, in most cases, it manifests as mild white spots on teeth and is not ...