The human body is fascinating for its ability to respond ... At the macroscopic level, the body responds to external stimuli with a cascade of events, such as when nerve cells transmit signals ...

The body is constantly scanning itself and recalibrating ... in visualizing and measuring internal bodily signals. Unlike external stimuli, internal signals are often subtle and require invasive ...

A series of short films for secondary schools examining the human body through spectacular graphics based on the latest science and stories of remarkable people around the world. This series gives ...

In a study published February 2 in Cell Stem Cell, researchers at the University of Pennsylvania successfully transplanted a human ... stimuli. “This is an exciting new part of the puzzle,” says Anna ...

Scientists are exploring that futuristic vision by using special 3-D printers to make living body parts. Called bioprinters, these machines use human cells as “ink.” A standard 3-D printer ...

Learning new techniques to help reduce stress, fatigue and anxiety, among other reactions to external stimuli ... studies how one part of the human body relates to another part of the body.

While pain usually signals an injury or infection, there are rare cases where pain arises in response to harmless stimuli ...