The Pigment Behind Red Hair Has a Surprising Cellular Benefit, Scientists Reveal

  • تاريخ النشر: منذ 3 أيام زمن القراءة: دقيقة قراءة

New study shows the pigment may help cells safely store excess cysteine.

The Pigment Is Called Pheomelanin

The Benefit Involves Excess Cysteine

Scientists Studied Zebra Finches, Not Humans

Male Birds Received Additional Cysteine

A Drug Blocked the Pigment Pathway

Blocking Pheomelanin Increased Oxidative Damage

Females Showed a Similar Warning Pattern

The Pigment May Function as a Cellular Disposal Route

The Discovery Helps Explain an Evolutionary Puzzle

Red-Haired People Should Not Change Their Diet

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A biological feature associated with appearance can sometimes serve a less visible purpose inside the body. Discovering that hidden role can overturn assumptions about why certain traits survived evolution.

The latest finding reveals an unexpected trade-off rather than a simple health advantage. Its importance lies in what happened when researchers experimentally prevented the pigment from being produced.

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