When confronted with unpleasant and potentially harmful stimuli such as foul odors or tastes, PET - scans show increased bloodflow in the amygdala. (sciencedaily.com)
The way those things hug the «male figure», an 1 % increase in bloodflow to the junk can be observed with the naked eye from across a gymnasium. (religion.blogs.cnn.com)
Anti-embolism stockings have a graduated compression going up the leg and help bloodflow. (exmed.net)