cardiovascular and muscular systems,
CrossFit,
Fitness regimen,
glycogen,
Mental Strength,
mitochondrial enzyme systems,
overtraining,
personal training,
rest day,
systemic training,
Training,
WOD,
Workout of the day -
How to Nourish Your Body with Rest Days
Your body will be primarily focused on regeneration, so you will return to the box more capable then before.