SpaceX's highly anticipated Polaris Dawn mission is set to launch later this summer with an all-civilian crew. A big part of their mission is researching health. How space changes the human body could ...

The human body contains around 36 trillion to 37 trillion cells, and researchers are mapping out where every one of those cells lives. Scientists with the Human Cell Atlas (HCA), an international ...

The endocannabinoid system is found throughout the brain and body and plays a key role in everything from memory and learning to sleep to social behavior. During prolonged aerobic exercise, the body's ...

A new imaging breakthrough combines ultrasound and light-based techniques to generate vivid 3D images that show both tissue structure and blood vessel activity. Developed by researchers at Caltech and ...

Long wavelength red light that can extend beyond the human visual range penetrates deeply through biological tissue. Exposure to these longer wavelengths improves mitochondrial function and ATP ...

Scientists have generated human stem cell models which contain notochord -- a tissue in the developing embryo that acts like a navigation system, directing cells where to build the spine and nervous ...