Derrick Lonsdale, M.D., was born in Lancashire, England, and earned an MB.BS. at London University. He worked in medical practice for 64 years, retiring at the age of 88. Dr. Lonsdale is a Fellow of the American College for Advancement in Medicine (ACAM), an international professional organization that represents the alternative medicine field. He has written two previous books on alternative medicine and published over 100 medical papers.