Harvard Medical School Doctor Confirms Afterlife. Click on the link to read the full story. Excellent article about Dr. Eben Alexander who claims to have visited the afterlife. Dr. Eben Alexander has taught at Harvard Medical School and practices neurosurgery. And while Alexander says he’s long called himself a Christian, he never held deeply religious beliefs or a pronounced faith in the afterlife. In 2008 he survived a week long coma during which he claims to have visited the afterlife. At the time his brain did not have activity in several key areas making it impossible for him to dream or hallucinate yet what he experienced was a vivid reality of beings and extraordinary locations. A must read for Ghostology aficionados.