WASHINGTON (CN) - In response to the World Trade Organization's finding that U.S. dolphin safe tuna regulations discriminate against Mexican fisheries, the regulations have been expanded and ...

Teeth can appear yellow for various reasons, but a range of strategies can slow the process and may reverse it. Tips for getting white teeth range from avoiding certain foods to occasional brushing ...

Teeth whitening refers to a variety of processes that aim to make someone’s natural teeth appear brighter and whiter. Teeth whitening methods include sanding down stains, bleaching, ultraviolet (UV) ...