Scientists from multiple universities have found that human scalps possess a hidden 'molecular switch' that influences hair growth. This discovery opens possibilities for treating hair loss. While long scalp hair is rare in the animal kingdom, it exists in some mammals, suggesting a shared potential among species. The research indicates that long hair may have evolved in early humans in equatorial Africa, providing protection from the sun. Understanding the evolutionary and biological mechanisms behind hair could further clarify its significance in human social communication.
Researchers discovered a hidden 'molecular switch' in humans that regulates scalp hair growth, potentially unlocking treatments for hair loss.
The ability to grow long hair is not unique to humans, as seen in mammals like orangutans and male lions, indicating evolutionary roots.
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