Unbreakable: The Hidden Keys to Unlimited Energy, Disease Resistance, and Longevity (Hardcover) (ISBN-13: 9781401972615)

Ari Whitten, M.S., is the founder of the Energy Blueprint and the author of Eat for Energy and The Ultimate Guide to Red Light Therapy. He holds a B.S. in kinesiology and an M.S. in human nutrition and functional medicine. He has been studying and teaching health science for over 25 years. You can find his work at www.theenergyblueprint.com.

Alex Leaf, M.S., holds a master's degree in nutrition from Bastyr University and has been writing about the science of nutrition, health, and fitness for over a decade. Currently, Alex is a content creator and research writer alongside Ari Whitten at the Energy Blueprint. You can visit him online at alexleaf.com.