The human body has always been crowded with microscopic passengers, from bacteria to viruses and fungi. Over the past two ...

Ever looked in the mirror and wondered what incredible, and sometimes unsettling, secrets your own body might be holding?

If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have ...

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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 ...