Books, I have only read about the exercises for my body type. I am Insulin Resistant with a healthy adrenal gland. She recommends calming exercises like Pilates or Yoga as often as you want. Resistance exercises like lifting weights - work your way up to 3 days a week 45 minutes each. Cardio - work your way up to 2 days a week, 20 minutes each no more that 80% maximum heart rate. If I recall correctly, she recommends that you don't do cardio if you have burned out adrenal glands, until you begin to heal.