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29/6/2015
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The person takes all these factors into account.
Depression is a severe and crippling emotional disorder that afflicts some
10-15% of the population worldwide nike air max
2014 new zealand , according to the World Health Organization.
While there are many varieties of the disorder, the principal characteristics of
the illness remain the same: a reduced level of self-esteem; lack of energy or
interest in daily activities; reduced social functioning and damage to personal
relationships; changes in appetite and weight; and gloomy and often suicidal
thoughts and actions. At one time, depression was seen as being solely the
result of environmental factors such as upbringing, trauma, and stress. Research
in the last few decades, however, has begun to reveal that depression has a
strong biological basis that interacts with environmental factors to bring on
the condition. While the exact interrelationship of these factors is still not
fully understood nike air max
90 mens trainers , the research has led to breakthroughs in the use
of medications and other treatments that can help depression sufferers lead
productive and satisfying lives. Understanding the biological basis of
depression requires a look at how the normal brain operates. Within the brain,
special chemicals called neurotransmitters carry out many important functions as
they help transfer messages throughout the brain's nerve cells, called neurons.
We each have somewhere between 10-100 billion neurons within our brains.
Whenever we do anything, react, feel emotions, or think, our neurons transmit
messages in the form of electrical impulses from one cell to another in about
15 http://www.airmax90nz.com/nike-air-max-90-mens-trainers.html ,000
of a second. Because they move so quickly, our brains can react instantaneously
to stimuli such as pain. Neurotransmitters travel from neuron to neuron in an
orderly fashion. They are specifically shaped so that after they pass from a
neuron into the synapse, they can be received onto certain receptors, on a
neighboring neuron. Neurotransmitters can fit a number of different receptors,
but receptor sites can only receive specific types of neurotransmitters. Upon
landing at the receptor site of neuron, the chemical message of the
neurotransmitter may either be changed into an electrical impulse and continue
on its way through the next neuron, or it may stop where it is. In either case
the neurotransmitter releases from the receptor site and floats back into the
synapse. It is then removed from the synapse in one of two ways. The
neurotransmitter may be broken down by a chemical called monoamine
oxidase nike air max
90 mens size 9 , or it may be taken back in by the neuron that
originally released it, via a process called reuptake. Of the 30 or so
neurotransmitters that have been identified, researchers have discovered
associations between clinical depression and the function of three primary
neurotransmitters: serotonin, norepinephrine, and dopamine. These function
within the limbic structures and hypothalamus ? those sections of the brain that
regulate emotions, reactions to stress, sleep nike air
max 90 hyperfuse nz , appetite, and sexuality. It is at this point
that the research on the exact mechanisms of depression is incomplete.
Scientists have been trying to unlock the secret behind clinical depression by
trying to understand the way in which antidepressants work on this process to
elevate mood and reduce symptoms. In a way that is not clearly understood,
antidepressants seem to affect that way that the neurons in the brain deal with
their ?used? neurotransmitters. Some (the MAOI, or monoamine oxidase inhibitor
category of drugs) seem to work by lowering the amounts of the chemical that
breaks down certain neurotransmitters; others (the SSRI or selective serotonin
reuptake inhibitors) seem to reduce the amount of serotonin that is taken back
into the cells, thus freeing more to help elevate mood. Neither mechanism is
fully understood. Also, research continues to increase knowledge and
effectiveness of these drugs. While medications are important, it is important
to know that there are non-medication approaches to changing this biochemistry.
Just as diabetes requires both a medication and a behavioral approach nike air max
90 womens cheap , depression is best fought with a combination of
behavioral change and medication. Things like regular exercise and a proper diet
(carbohydrates in particular are thought to affect this chemistry) as well as
maintaining regular routines around sleep and meals seem to have a positive
effect on the levels of neurotransmitters in the brain. Research indicates that
there may be a genetic component in how susceptible an individual is to
depression, although a strong causal link has not been shown and no treatments
based on this fact currently exist. Therapy, of course, helps an individual to
learn to cope with the crushing thoughts and moods of depression, and is a major
part of the treatment of the condition. It is important to understand that all
of these approaches, used in tandem, can directly improve the body's ability to
function in spite of the effect of the biochemistry. Depression nike air max
90 womens nz , while a serious condition, can be controlled if the
person takes all these factors into account.
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