Showing posts with label Health Info. Show all posts
Showing posts with label Health Info. Show all posts

Accepting the Diagnosis of Alternative Treatments for Autism The School System

Receiving a diagnosis of Autism can seem overwhelming. You may be left with a lot of unanswered questions about the diagnosis. You might be thinking the diagnosis is wrong. This cannot be happening to your child. There are different feelings and emotions you will experience when dealing

Complete Facts about Hair Cloning Research for Hair Transplant Procedures

Before you have hair transplant surgery, you might want to know how it will turn out.  The truth is that every head of hair is different from all others and you cannot know exactly how it will turn out.  However, with a few facts at your disposal, you can get an advance idea of how your hair will look.

Gestational Diabetes Risks for Baby And Cause Of Blood Sugar Levels during Labor

Because of all the risks and complications associated with poor control of blood glucose levels during pregnancy it is best to keep them in check all the time.  But if there is a time during your pregnancy where it is considered more important to have your blood glucose levels under control it is when you are in labor.

Mental Health Statistics– More Than Just a Psychiatric Facility, Major Stressors in America

If a friend or someone in the family is to be treated in a mental facility, we try to find the best facility for them. After all, the goal is for them to get well, and we believe that our choice of hospital is vital for the person’s recovery. In Illinois, when we speak of psychiatric facilities, one hospital easily comes to mind. That is Elgin Mental Health Center or EMHC.

Things You Must Know About This New Disease The Zika Disease

The disease was first discovered in 1947, when scientist were carrying out a research in the Zika forest. It was first isolated from the serum of monkey and in 1952 it was described as Zika virus. In 1954, the transmissible agent was also isolated from a Nigerian. The disease became pandemic in

Understanding facts about heat part2

Liquids and for solutions. If milk is placed upon a stove, the temperature rises steadily until the boiling point is reached; further

Understanding facts about heat

Boiling. Heat absorbed in Boiling. If a kettle of water is placed above a flame, the temperature of the water gradually increases, and soon

Essential of fresh air to the body

Fresh Air. Fresh air is essential to normal healthy living, and 2000 cubic feet of air per hour is desirable for each individual. If a gentle breeze is blowing, a barely perceptible opening of a window will give the needed amount, even if there are no additional drafts of fresh air into the room through cracks.

Training the brain on how to retent, recall and recognize


Our discussion up to this point has centred around the phase of memory called impression.
We have described some of the conditions favorable to impression and have seen that certain and accurate memory depends upon adherence to them. The next phase of memory--Retention--cannot be described in psychological terms. We know we retain facts after they are once impressed, but as to their status in the mind we can say nothing. If you

were asked when the Declaration of Independence was signed, you would reply instantly. When asked, however, where that fact was five minutes ago, you could not answer. Somewhere in the recesses of the mind, perhaps, but as to immediate awareness of it, there was none. We may try to think of retention in terms of nerve cells and say that at the time when the material was first impressed there was some modification made in certain nerve cells which persisted. This trait of nerve modifiable is one factor which accounts for greater retentive power in some persons than in others. It must not be concluded, however, that all good memory is due to the inheritance of this trait. It is due partly to observance of proper conditions of impression, and much can be done to overcome or offset innate difficulty of modification by such observance. We are now ready to examine the third phase of memory--Recall. This is the stage at which material that has been impressed and retained is recalled to serve the purpose for which it was memorized. Recall is thus the goal of memory, and all the devices so far discussed have it for their object. Can we facilitate recall by any other means than by faithful and intelligent impressions? For answer let us examine the state of mind at time of recall. We find that it is a unique mental state. It differs from impression in being a period of more active search for facts in the mind accompanied by expression, instead of a concentration upon the external impression. It is also usually accompanied by motor expressions, either talking or writing. Since recall is a unique mental state, you ought to prepare for it by means of a rehearsal. When you are memorizing anything to be recalled, make part of your memorizing a rehearsal of it, if possible, under same conditions as final recall. In memorizing from a book, first make impression, then close the book and
practise recall. When memorizing a selection to be given in a public speaking class,
intersperse the periods of impression with periods of recall. This is especially necessary
in preparation for public speaking, for facing anaudience gives rise to a vastly different
psychic attitude from that of impression. The sight of an audience may be embarrassing
or exciting. Furthermore, unforeseen distractions may arise. Accordingly, create those
conditions as nearly as possible in your preparation. Imagine yourself facing the audience.
Practise aloud so that you will become accustomed to the sound of your own voice. The
importance of the practice of recall as a part of the memory process can hardly be
overestimated. One psychologist has advised that in memorizing significant material
more than half the time should be spent in practising recall.
There still remains a fourth phase of memory--Recognition. Whenever a remembered fact
is recalled, it is accompanied by a characteristic feeling which we call the feeling of
recognition. It has been described as a feeling of familiarity, a glow of warmth, a sense of
ownership, a feeling of intimacy. As you walkdown the street of a great city you pass
hundreds of faces, all of them strange. Suddenly in the crowd you catch sight of some one
you know and are instantly suffused with a glowof feeling that is markedly different
from your feeling toward the others. That glowrepresents the feeling of recognition. It is
always present during recall and may be used ingreat advantage in studying. It derives its
virtue for our purpose from the fact that it isa feeling, and at the time of feeling the
bodily activities in general are affected. Changes occur in heart beat, breathing; various
glandular secretions are affected, the digestive organs respond. In this general quickening of bodily activity we have reason to believe that the nervous system partakes, and things
become impressed more readily. Thus the feeling of recognition that accompanies recall
is responsible for one of the benefits of reviews. At such a time material once memorized
becomes tinged with a feelingful color different from that which accompanied it when
new. Review, then, not merely to produce additional impressions, but also to take
advantage of the feeling of recognition.

Nature of the brain understanding mental processes During studies


During study, exact knowledge of the nature of this action is not general. As you will be
greatly assisted in understanding mental processes by such knowledge, we shall briefly examine the brain and its connections. It will be manifestly impossible to inquire into its nature very minutely, but by means of a description you will be able to secure some conception of it and thus will be able better to control the mental processes which it underlies. To the naked eye the brain is a large jelly-like mass enclosed in a bony covering, about one-fourth of an inch thick, called the
skull.Inside the skull it is protected by a thick membrane. At its base emerges the spinal cord, a long strand of nerve fibers extending down the spine. For most of its length, the cord is about as large around as your little finger, but it tapers at the lower end. From it at right angles throughout its length branch out thirty-one pairs of fibrous nerves which radiate to all parts of the body. The brain and spinal cord, with all its ramifications, are known as the nervous system. You see now that, though we started with the statement that the mind is intimately connected with the brain,
we must now enlarge our statement and say it isconnected with the entire nervous system.
It is therefore to the nervous system that we must turn our attention. Although to the naked eye the nervous system is apparently made up of a number of different kinds of material, still we see, when we turn our microscopes upon it, that its parts are structurally the same. Reduced to lowest terms, the nervous system is found to be composed of minute units of structure called nerve-cells or neurones. Each of these looks like a string frayed out at both ends, with a bulge somewhere along its length. The nervous system is made up of millions of these little cells packed together in various combinations and distributed throughout the body. Some of the neurones are as long as
three feet; others measure but a fraction of an inch in length. We do not know exactly how the mind, that part of us which feels, reasons and wills, is connected with this mass of cells called the nervous system. We do know, however, that every time anything occurs in the mind, there is a change in some part of the nervous system. Applying this fact to study, it is obvious that when you are performing any of the operations of study, memorizing foreign vocabularies, making arithmetical calculations, reasoning out problems in geometry, you are making changes in your nervous system. The question before us, then, is, What is the nature of these changes? According to present knowledge, the action of the nervous system is best conceived as a form of chemical change that spreads among the nerve-cells. We call this commotion the nervous current. It is very rapid, moving faster than one hundred feet a second, and runs along the cells in much the same way as a "spark runs along a train of gunpowder." It is important to note that neurones never act singly; they always act in groups, the nervous current passing from neurone to neurone. It is thought that the most important changes in the nervous system do not occur within the individual neurones, butat the points where they join with each other. This point of connection is called the synapse and although we do not understand its exact nature, it may well be pictured as a valve that governs the passage of the nervous current from neurone to neurone. At time of birth, most of the valves are closed. Only a few are open, mainly those connected with the vegetative processes such as breathing and digestion. But as the individual is played upon by the objects of the environment, the valves open to the passage of the nervous current. With increased use they become more and more permeable, and thuslearning is the process of making easier the passage of the nervous current from one neurone to another.

What happen's when you loss memory and the major addiction

Parasympathetic and sympathetic nervous systems, which are part of the autonomic nervous system (ANS). The ANS maintains

How the brain understand reality and the environs


How does the brain fi lter incoming sensory information so that sights and sounds do not become all mixed
together? What happens when the brain loses this fi ltering ability as a result of, say, taking a hallucinogenic drug? What have we learned about depression and anxiety from the drugs that we administer to treat these disorders? The answers to these questions are slowly being revealed as more becomes known about the
actions of serotonin in the brain. Serotonin is a very ancient neurotransmitter and has been found in the venom of amphibians, wasps, and scorpions and within the nematocysts of the sea anemone as well as in the
nervous system of parasitic fl atworms, crickets, and lobsters. Within the human body, 90 %of the total serotonin is contained within the neurons of the gut and is released from the intestines to determine bone growth or shrinkage. Another 8 %of the body’s serotonin is found in the blood and is localized inside
platelets and mast cells; in fact, it was initially discovered in serumand determined to have tonic(or constricting) effects on the vascular system — hence its name. The remaining few percent is found in the brain, in roughly the same location as in every other vertebrate brain, leading scientists to conclude that this neurotransmitter system was present in the primitive nervous system at least one half-billion years ago.
Neurons that produce and release serotonin in the brain are organized into a series of nuclei that lie in a chain along the midline, or seam, of the brainstem; these are called the raphe nuclei (raphe means seam in Latin). These neurons project their axons to every part of the brain, and some of these axons make contact with blood vessels; the neurons also project downward into the spinal cord. If you were able to insert a recording device into the major raphe nuclei and “listen” to the activity of your serotonin neurons, you would discover that they have a regular slow spontaneous level of activity that varies little while you are awake. When you fall asleep, the activity of these neurons slows. When you start to dream — or if, as we’ll see shortly, you ingest a hallucinogen — these neurons cease their activity completely. Despite the relative scarcity of serotonin in your brain, drugs that alter serotonin function can produce profound changes in how you feel and how you experience the world around you. For example, such drugs often stimulate the sympathetic autonomic nervous system and produce increased heart rate, increased respiration, dilated pupils, and other unpleasant side effects. On the other hand, the effects of serotonin upon blood vessel dilation may underlie the ability of an entire class of drugs, known as the tryptans, to attenuate the pain associated with a
migraine headache. Other drugs can also help alleviate symptoms that often accompany migraines and that involve serotonin: depression and sleep problems. The production of serotonin requires the absorption of the
amino acid tryptophan from your food. Transport of this amino acid is influenced by the level of other amino acids in your blood; that level, in turn, is also influenced by what you eat. Within the neurons of your brain, tryptophan is converted to 5-hydroxy-tryptophan by tryptophan hydroxylase, an enzyme that is usually not saturated with substrate. Therefore, if you eat less tryptophan, your brain generally produces less serotonin.
Conversely, providing additional tryptophan in the diet may lead to increased production of serotonin within neurons. It is worth noting, however, that simply producing more of any neurotransmitter does not guarantee that the neuron will actually release it. If too much serotonin is produced, then the excess is
simply discarded. Studies have shown that only extreme depletion or supplementation of this amino acid in the diet can influence serotonin-controlled brain processes such as mood and sleep.

The role Glutamate plays in the brain


What is so important about glutamate? It makes and breaks connections between neurons, and it turns on other neurons to stimulate them into action. Glutamate neurotransmission is mediated through receptors that allow the passage of sodium or calcium ions into neurons; the receptors were named according to the chemical tools that were historically used to study them. For example, the sub type of glutamate receptors known as N-methyl- d-A spartate (NMDA) allows the entry of calcium ions into neurons. Following the
entry of calcium ions, some truly interesting things begin to happen inside the neuron that leads to the production of what you might call a “memory.” Calcium ions activate a complex cascade of biochemical changes that ultimately involve the genes of the neuron and that may actually change how the neuron behaves for the rest of your life. These biochemical changes may also alter how one neuron communicates with hundreds of other neurons. Think of this neural process as a symphony of musicians playing together for the first time. Initially, everyone is playing his or her own song. Then the conductor arrives and hands out a
musical score; all of the musicians begin to play in a complex pattern of rhythms that conveys information. Like the conductor, calcium ions entering via NMDA channels initiate the process of  forming an ensemble of neuronal activity. Your neurons are the musicians, and when they become linked to each other according
to some common pattern of activity, they form an ensemble that plays a particular song, or memory, which can recur only when that particular ensemble of neurons plays the same pattern together. In this analogy, memories can be seen as symphonies of activity in our brains, and just as we enjoy playing the same tunes
over and over again, so we also enjoy replaying pleasant memories. Unfortunately, glutamate’s actions can prime us to play unpleasant or traumatic memories over and over again as well when they are triggered by innocent events in our daily lives. In addition, the entry of calcium ions into neurons may sometimes become excessive as a result of aging, disease, or stroke and may initiate some harmful processes that may contribute to the removal of synapses or even the death of neurons. This information tells us quite a lot about the role of glutamate: when it works correctly, memories can be formed; when it does not work correctly, as when it induces too much calcium to enter the neuron, then death and destruction follow and memory is lost. Thus, maintaining a good balance of function related to the entry of calcium ions is a challenging but critical requirement for neurons, and the amino acid neurotransmitter glutamate plays a critical role in this process.
Glutamate also has a unique function in brain development. When you were very young, the neurons in your brain developed many connections, or synapses, with other neurons to optimize your ability to learn a great deal of information quickly, such as how to move your hands and feet, what your mother’s voice sounds like, or what the color red looks like. But as you grew older (during adolescence), your brain became a bit like an over-wired computer — for it to work better and faster, with less likelihood of failing, it became advantageous for it to remove unnecessary “wires,” or connections. This is where glutamate’s other unique abilities come into play. Your brain uses glutamate to prune synapses that have become unnecessary, which in turn allows the remaining neural circuits to function  more efficiently. Later, when you’re an adult, glutamate is critical for allowing your brain to be “plastic,” to mold your responses to the environment so that you increase your chances of survival. Thus, like the Roman god Janus, the neurotransmitter glutamate has two faces: One is important for the early brain development and function in our past; the other is important
for brain pruning and subsequent function in our future. Meanwhile, its staying power can sometimes be a mixed blessing. For example, as mentioned, traumatic memories formed through glutamate’s actions can continue to haunt us long after the event that created those memories has occurred. The best example of this is called post-traumatic stress disorder; the unpleasant memories that characterize this disorder are very difficult to treat because of the amazing efficacy of glutamate to form lasting changes in the brain.