While space agencies are making significant preparations for long-term missions to the Moon and Mars, a fundamental human ...

Sperm struggles to find its way to an egg in microgravity, suggesting mammalian reproduction in space may not be possible.

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Humans don’t have a defined mating season like deer or wolves. Here’s how evolution rewired ...

Human biology evolved for a world of movement, nature, and short bursts of stress—not the constant pressure of modern life. Industrial environments overstimulate our stress systems and erode both ...