The Energy Paradox by Steven R. Gundry, MD – 9780063005730
ISBN-13: 9780063005730, 978-0063005730. As Dr. Gundry explains, feeling tired, moody, and zapped of energy is not normal, no matter your workload or age. Author(s): Steven R. Gundry, MD. The Energy Paradox What to Do When Your Get-Up-and-Go Has Got Up and Gone.