American Council on Exercise: "Resting Metabolic Rate: Best Ways to Measure It -- And Raise It, Too."
CDC: "About BMI for Adults," "How much physical activity do adults need?" "Balancing Calories."
Ashwell, M. The Open Obesity Journal, January 2011.
Radzeviciene, L. Public Health, published online Jan. 3, 2013.
Hadaegh, F. Experimental and Clinical Endocrinology and Diabetes, June 2006.
Norton, K. Anthropometrica: A Textbook of Body Measurement for Sports and Health Courses, UNSW Press, 1996.
"Determining Your Waist-to-height Ratio and Associated Health Risks," Coffee Break Training, No. HS-2013-3. U.S. Fire Administration, Sept. 11, 2013.
Penn State Hershey PRO Wellness Center: "Waist to Height Ratio (WHtR)."
Wake Forest Baptist Medical Center: "Soluble Fiber Strikes a Blow to Belly Fat."
Harvard Health Publications: "Abdominal fat and what to do about it."
Harvard School of Public Health: "Healthy Weight," "Genes Are Not Destiny."
Choosemyplate.gov: "What are empty calories?"
National Heart, Lung, and Blood Institute: "Fat-free versus regular calorie comparison."
American College of Sports Medicine: "The Heart Rate Debate," "8 Benefits of High-Intensity Interval Training (HIIT)."
American Heart Association: "Target Heart Rates."
Go4Life.com: "4 Types of Exercise."