Critical Essay Writing a Critical Essay. How to write a Critical Essay - Format, Topics, Structure, Samples, Outline This type of essay writing is an analysis of a certain reading and basically it is a summary of the point of view presented in this reading and an evaluation of this work.
So I began to think. It links together the sympathetic and parasympathetic nervous system, with the actions of the stress hormones, the adrenal glands, thyroxine, glucagon, insulin etc.
A complex beast of a thing. Bjorntorp established that chronic psychological stress chronic strain creates a dysfunction of the HPA-axis that can be monitored, most easily, by looking at twenty-four-hour cortisol secretion.
A dysfunctional HPA-axis leads to a flattened and unresponsive burnt-out cortisol release during the day. This does not mean cortisol levels are high, or low, they just flat-line.
He studied various populations e. Sweden and Lithuania, and found that the Lithuanians at the time were far more likely to have a dysfunctional HPA-axis than the Swedes, and their rate of CVD was four times as high as that in Sweden.
A study done only on men at the time.
I then started to look at other conditions where the HPA-axis is damaged. Depression, schizophrenia — in fact almost all psychiatric illness — PTSD, survivors of childhood abuse. In all cases the same pattern emerged. I detoured round spinal cord injury. Most people are probably unaware that spinal cord injury is associated with a very much higher rate of CVD.
People who suffer spinal cord injury also have a damaged HPA-axis. Some more than others. It depends on the level of the damage, and whether or not the autonomic nervous system is damaged.
It travels down the spine, but not in the spinal canal]. I then had a look at corticosteroids. These are the drugs used in many diseases as anti-inflammatory agents. Which is why they are called corticosteroids steroids manufactured in the cortex of the adrenal gland.
They are fantastic drugs, and widely used. The more I looked, the more it seemed very clear that the unconscious neuro-hormonal system was the key player in CVD, both heart attacks and strokes.
It also seemed that cortisol was probably the lynch pin. Which is why my favourite graph on CVD comes from Lithuania. I have used it before, and I make no bones about using it again. The rate of heart disease in Lithuania was gradually falling during the s, until the year At which point the Berlin wall came down, the Soviet Union broke apart and the structure of society was torn apart.
It was a very, very, stressful time. What happened to the rate of heart disease in men, under Latvia and Estonia showed the same pattern, as did Russia three years later when Gorbachov was deposed by Yeltsin. In non-Soviet European countries, nothing happened. Heart disease rates continued their gentle fall.
I had been looking for evidence that abrupt social disruption leads to stress which leads to CVD.How to Write an Essay Introduction Your introduction acts like a map for your essay’s readers. It should give necessary background or contextual information for your topic, as well as present your thesis statement.
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