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Red-haired people suffer less pain than dark-haired people
When undergoing surgery, red-haired people need anesthesia or take pain medicine at a higher dose than those with dark hair, according to research by British experts.
Dark Hair
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Archeology
Neandertal people have dark hair
Neandertal people may have the appearance of modern humans, especially Europeans. DNA analyzes show that some Neandertal people have dark hair and pale skin.