Another option is, in addition to one's Yoga practice, to add in a simple arm weight routine 2 - 3 days per week for 20 minutes with free weights. (fitbodyhq.com)
Once you get comfortable with these exercises, you can progress to more advanced weight routines designed to help you build muscle fast. (build-muscle-and-burn-fat.com)
Beyond burning calories, consistent cardio and weight routines charge the immune, endocrine and neurological systems. (scientificamerican.com)