One way of determining a person’s likely ethnicity is looking inside their ears. Simply put, there are two kinds of earwax: dry and white, or wet and brownish. Genetic research shows that Caucasians tend to have the sticky type, while East Asians generally have the dry kind. This is due to a variant of the ABCC11 gene, which also affects the chemical that produces body odor. Koreans, Japanese, and others of East Asian descent typically have un-sticky earwax and un-smelly bodies due to the same gene.