Physical Activity May Be Driven by Biological Regulator

Actually more than one "regulator."

"More physical education programming in school won't necessarily increase a child's total physical activity levels, researchers said."

True.

"The finding suggests that the body may regulate physical activity much the way it regulates appetite."

True.

The regulators are called self-control, willpower, self-esteem, responsibility.

Any other "regulator" is a fabrication.

"'Environmental opportunity does not control physical activity,' Dr. Wilkin said."

True.

The regulators just mentioned and parental influence control physical activity.

And this Wilkin person? What is his contribution to understanding what is going on?

"'How, I don't know.'"

'Nuff said.