EDITOR’S NOTE: Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports, and is the author of the book “Practical ...

As I sit here pondering what to write, what is it, exactly, that is doing the pondering? Where do the thoughts come from? How does the three-pound mass of grey matter that is my brain give rise to the ...

Some years ago, I had a colonoscopy without being fully anesthetized, and was able to watch on a computer screen the shifting views of the insides of my colon. I was both fascinated and disturbed.