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Textbooks were wrong: Scientists reveal how human hair really grows

A new study suggests human hair grows in a way scientists never expected. Researchers found that hair is pulled upward by coordinated cell movements inside the follicle rather than simply being pushed out by dividing cells at the root. Advanced 3D imaging revealed a hidden cellular “motor” that helps drive growth.

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A missing color in indoor light may help prevent myopia

A wavelength of light largely missing from indoor LEDs may play an important role in protecting developing eyes from nearsightedness. Researchers found that indigo light completely prevented myopia in tree…

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