Elisabeth Kübler-Ross dying led to the book "On Death and Dying" in 1969. In it, she proposed the now famous Five Stages of Grief as a pattern of adjustment: denial, anger, bargaining, depression, and acceptance. In general, individuals experience most of these stages when faced with their imminent death. The five stages have since been adopted by many as applying to the survivors of a loved one's death, as well. Kübler-Ross encouraged the hospice care movement, believing that euthanasia prevents people from completing their 'unfinished business'. In 1977 she persuaded her husband to buy forty acres of land in Escondido, California, near
Kübler-Ross model Yale University obtained some findings consistent with the five-stage hypothesis but others inconsistent with it. Several letters were also published in the same journal criticizing this research and arguing against the stage idea. George Bonanno, Professor of Clinical Psychology at Columbia University, in his book "The Other Side of Sadness: What the New Science of Bereavement Tells Us About Life After a Loss", summarizes peer-reviewed research based on thousands of subjects over two decades and concludes that a natural psychological resilience is a principal component of grief and that there are no stages of grief to pass. Bonanno's work has