The body's incredible-- adapts suuuper fast. Among the best things to do to keep it on its toes, much like you're doing (knowingly or not!) is interval training

The body's incredible-- adapts suuuper fast. Among the best things to do to keep it on its toes, much like you're doing (knowingly or not!) is interval training. A helpful guide to how to do that: http://www.greatist.com/fitness/interval-training-complete-guide/ http://www.greatist.com/fitness/interval-training-complete-g...