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Human biology

New insights may help with new treatments for cataracts and other illnesses.

Katharine Gammon, Contributor

New model shows how circulating cancer cells flow and accumulate, and could help with better diagnostics.

Katharine Gammon, Contributor

First blood test to diagnose depression in adults.

Marsha Lewis, Contributing Producer

What makes skin so tough?

Lisa Marie Potter, Contributor

Sex differences in human travel behavior may have evolutionary roots.

Nala Rogers, Contributor

People with more education are more likely to be nearsighted.

Patricia Waldron, Contributor

How to find a bedtime in sync with a child's unique body clock.

Karin Heineman, ISTV Executive Producer

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