Researchers with the global Human Cell Atlas (HCA) consortium report significant progress in their quest for a better understanding of the cells of the human body in health and disease, with the ...

Explore the tiny structures and biological details found inside the human body through microscopic observation. Discover features that are invisible to the naked eye and learn more about human biology ...

Humans collectively produce more than 2 billion tonnes of carbon dioxide annually just by turning food into energy, a 74% ...

Leaf through a textbook, watch a wellness influencer, or listen in at the gym, and it can feel as though the human body has already been mapped to exhaustion. Every muscle named, every nerve traced.

150 years ago, average human body temperatures appear to have been higher than now. Scientists are still exploring exactly ...

Scientists found that prolonged fasting triggers major changes throughout the body, but many of the most interesting effects only appeared after about three days without food. The results suggest ...

Your anatomy operates like a machine, it's success hinging on the work of over 70 organs, each with a unique function. From the heart's blood-pumping ability to the liver's filtering power, each ...

Things scientists just found inside the world's deepest caves are changing what we know about life on Earth. You carry your body everywhere you go, and you still know less about it than you think. So ...

In a recent study published in the journal PNAS, researchers examined the relationship between cell size and count across the human body, establishing a quantitative framework and uncovering ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. The human body is one ...