Only about 1-2% of the world's population is redheaded, although some regions (such as Scotland and Ireland) have higher concentrations. Though myths like the vampire idea from Greek mythology exist, plenty of unique truths exist about gingers. For example, redheads require 20% higher doses of anesthesia. In addition, the same chromosome that makes hair red also reduces immunity from the sun's UV rays. Hence why many redheads have such fair skin and sensitivity to sunlight.
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Key Facts In This Video
Redheads only make up about 1-2% of the world population. 00:36
People from equatorial regions of the world typically have darker hair and skin to protect themselves from the sun. 02:09
Redheads require on average 20% higher doses of anesthetic. 02:47
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