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.
Carlos Slim Helu, currently pegged by Forbes as the world's richest person, comes in only at No 22 on this list with $68bn to his name. He is beaten by Bill Gates, the founder of Microsoft, who comes in at No 12 because at his richest his fortune allegedly touched the equivalent of $136bn in today's dollars. There are no contemporary celebrities in the usual sense of the word on the list and no women.