If you've been to a health food store recently, you've probably noticed jojoba (pronounced ho-ho-ba) oil lining the shelves. And while the lipid has only recently become popular in the U.S., it's been used to treat dry skin for centuries, especially in Mexico [Source: Zeichner].
Forbes released its 2015 list of the worldâs richest people, with Microsoftâs co-founder Bill Gates reclaiming the top spot from Mexicoâs telecommunications mogul Carlos Slim Helu. According to Forbes, a record net worth of $29.2 billion was needed to make the top 20.
Image caption Bill Gates has been named the world's richest person for 16 of the last 20 years. Bill Gates has been declared the richest man in the world for the 16th time by Forbes magazine's annual ranking of global billionaires. The Microsoft founder once again beat Mexican businessman Carlos Slim to the top spot.