The human body has hidden biological “off-switches” hardwired into the nervous system — and today we’re exposing all 7. From ...

Many of the body's biggest flaws are the result of evolution building on old designs instead of starting over. Our spine, ...

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Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Each human is a ...

Explore the intersection of science, environment, and health with our comprehensive coverage ranging from climate change and ...

Scientists have discovered that the human body undergoes a dramatic internal transformation during extended fasting, with major changes appearing only after about three days without food. In a ...

From periods of rapid aging in our 40s and 60s to ancient brains that don’t decompose, here are some of the year’s most intriguing stories about human biology It can sometimes feel like health ...

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