James Jealous, D.O. (1943-2021), was an osteopathic physician, teacher, and writer. His life's work was founding and developing Biodynamics of Osteopathy, a unique methodology he established within the field of osteopathy, following the lineage of Dr. A.T. Still and Dr. W.G. Sutherland.He was born in Saco, Maine, and since his father was an osteopathic physician, he was around osteopathy from an early age. He studied at Kirksville College of Osteopathic Medicine in Missouri (now the A.T. Still University of Health Sciences), graduating in 1970. He then set up practice in rural Maine as an osteopathic primary care physician.Over time, Dr. Jealous saw parallels between the work of embryologist Dr. Erich Blechschmidt and that of osteopathic physician Dr. William Garner Sutherland. This inspiration led him to create his own body of work. In the early 1990s, he began teaching "A Biodynamic View of Osteopathy in the Cranial Field," which, as he developed his specific methodology, was refined to "Biodynamics of Osteopathy."A deeply spiritual person, he felt most at home in the natural world and was an avid fisherman and hiker.