Fun Facts about the Human Body

blonde hair

Only 2% of the world’s population have blonde hair

Blonde hair is extremely rare globally. 84% of the world’s population have black or dark-brown hair, including most of Africa and Asia. Blonde hair is most common in northern European regions. https://www.holleewoodhair.com/hair-color-statistics/ Why do people have blonde hair? People evolved to have blonde hair because, as they migrated north, the lighter the skin and hair, …

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thermometer 37

The average human temperature has dropped by about a degree in the last 150 years. In 1851 German doctor Carl Reinhold August Wunderlich (what a name) calculated that the average armpit temperature of 25,000 patients was 98.6F (37C). Scientists at Stamford university of studied thousands of historic medical reports including medical records of civil war …

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