Artists create gesture drawings using fluid and rapid hand motions that generate loose and roughly drawn lines to capture the feeling of a subject. Layers of lines are built, progressively refining ...

Share on Pinterest Scientists have identified vascular health indicators that may help predict stroke risk. Michael Lutz/Getty Images Changes in the eye can help predict other health concerns in the ...

On the right is a visualization of a healthy brain with intact cortical neuronal connections between the cortex and spinal cord, with brain areas active during volitional voiding of the bladder. The ...