Find out about the different stages of a human life cycle and how we change ... Discover how the food gets into the body, through the digestive system. What happens to food in your mouth?

and other signals are collectively known as body language. Microexpressions (brief displays of emotion on the face), hand gestures, and posture all register in the human brain almost immediately ...

Neuroscience examines the structure and function of the human brain and nervous system ... and its relationship to the rest of the mind and body. How Neuroscience Helps Us Understand the Mind ...