Don Koehler it was a job that spared him from living in any "freak show business". Later in life, he suffered from the medical condition kyphosis, resulting in (often severe) curvature of the spine. Koehler died in 1981 in Chicago from a reported heart condition, by which time he was estimated to be about 239 cm (7'10") tall. He was 55 years old. Don Koehler Donald A. Koehler (September 1, 1925 – February 26, 1981) is one of 17 known people in medical history to reach a height of 8 feet (2.44 m) or more. He was generally recognized as the tallest
Development of the nervous system in humans Development of the nervous system in humans The development of the nervous system in humans involves the studies of neuroscience and developmental biology to describe the cellular and molecular mechanisms by which complex nervous systems emerge during embryonic development and develop throughout life. Some landmarks of embryonic neural development include the birth and differentiation of neurons from stem cell precursors (neurogenesis), the migration of immature neurons from their birthplaces in the embryo to their final positions, outgrowth of axons from neurons and guidance of the motile growth cone through the embryo towards postsynaptic partners, the generation of synapses between these