3. Redheads can produce their own Vitamin D
As they can’t sufficiently absorb Vitamin D (it’s down to their lower melanin-concentration), redheads internally produce their own Vitamin D when they’re exposed to low light conditions. Woah!
4. Less than 2% of the world’s population have red hair
That’s approximately 140 million people. Scotland boasts the highest percentage of natural redheads, with 13% (40% might carry the gene there) while Ireland comes in second with 10%.
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