What the sigma? Some know “sigma” as the 18th letter of the Greek alphabet but it’s also teen slang for a cool dude.

Here are the backstories behind the emblems and logos of the world's most popular automakers, from Acura to Volvo and every brand in between.

Non-melanoma skin cancer (NMSC) is among the most prevalent forms of cancer originating in the top layer of the skin, with basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) being its ...