Blondism

There’s no shortage of famous blondes in Hollywood, but did you know that having light hair is very rare? While the number of blondes per capita may vary according to the country, only two in every 100 people in the world are natural blondes.

According to The Guardian, blonde women have lower testosterone levels than brunette women, which may help explain why blonde females tend to be perceived as beautiful. Blondism (the occurrence of blonde traits in a predominantly dark population) is associated with light pigments because it enables a more efficient vitamin D synthesis.