The
combination of working muscles to failure and eliminating rest periods creates workout regimen that burns the
maximum number of calories in a minimal amount
of time, and most efficiently develops muscle tone and strength.
Looking at the hemispheric
numbers, we can see that the first peak was actually due to a
maximum in the Northern hemisphere in November 2011, while the broader 2014 peak was due to the
combination of a
maximum in the Southern hemisphere in early 2014 and a slight reversal
of the activity decline in the Northern hemisphere.