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Stressful life experiences may be a cause of memory loss as a person ages. Glucocorticoids that are released during stress damage neurons that are located in the hippocampal region of the brain. Therefore, the more stressful situations that someone encounters, the more susceptible they are to memory loss later on. The CA1 neurons found in the hippocampus are destroyed due to glucocorticoids decreasing the release of glucose and the reuptake of glutamate. This high level of extracellular glutamate allow calcium to enter NMDA receptors which in return kills neurons. Stressful life experiences can also cause repression of memories where a person moves an unbearable memory to the unconscious mind. This directly relates to traumatic events in one's past such as kidnappings, being prisoners of war or sexual abuse as a child.

What neurons are damaged during stressful events?
Answer: The CA1 neurons found in the hippocampus
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Not all boys who pass the College election examination choose to become King's Scholars. If they choose instead to belong to one of the 24 Oppidan Houses, they are known as Oppidan Scholars. Oppidan scholarships may also be awarded for consistently performing with distinction in School and external examinations. To gain an Oppidan Scholarship, a boy must have either three distinctions in a row or four throughout his career. Within the school, an Oppidan Scholar is entitled to use the letters OS after his name.

How many distinguishments does a student need for an Oppidan Scholarship?
Answer: either three distinctions in a row or four throughout his career
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Various ecumenical movements have attempted cooperation or reorganization of the various divided Protestant denominations, according to various models of union, but divisions continue to outpace unions, as there is no overarching authority to which any of the churches owe allegiance, which can authoritatively define the faith. Most denominations share common beliefs in the major aspects of the Christian faith while differing in many secondary doctrines, although what is major and what is secondary is a matter of idiosyncratic belief.

What type of movements have tried to unite Protestant denominations?
Answer:
Various ecumenical