When your parasympathetic nervous system works to maintain vital bodily functions so that your body is in its natural balance, it is called .

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.

Ecology can best be described as the study of what

Which measure of an earthquake depends on how close you are to the focus?