One of the worst neurological disorders to have is dementia. It is a general term used to describe cognitive decline of the brain. It s not specific disease but denotes several brain disorders and mental illnesses. A person suffering from dementia can have severe impairment in judgment, loss of memory and thinking. Dementia is a very difficult disease not only for the patient but also for their families and caregivers. 

Some facts about dementia are as follows:

It s not a mental disorder occurring in old age but it does degenerates with age.
An estimation of 47.5 million people worldwide suffers from dementia and 60% of these people live in low and middle-income countries and according to WHO this figure is likely to increase.
Every 4 seconds a new case of dementia is reported
Dementia is a collective term to describe the many types of in people, such as 

Alzheimer s Disease: It is one of the most common type of dementia accounting for 60-80% of dementia case. People suffering from Alzheimer s have fewer nerve cells and the size of the brain shrinks.
Vascular Dementia: Another most common form of dementia occurring after a stroke.
Lewy Body Dementia: It is neurodegenerative condition that involves a protein called alpha-synuclein which changes the brain. Symptoms may be similar to Parkinson s disease.
Symptoms of dementia can range from mild to moderate to severe that includes:

Memory Loss
Disorientation meaning inability to focus or pay attention
Changes in visual perception
Impairment in reasoning and judgment
Dementia can be caused by damage to brain cells or progressive brain cell death. As a result communication between brain cells become difficult. Other symptoms include:

Stroke
Brain Tumor
Head Injury
Prion Disease
HIV Infection
Reversible Factors

There are no definite tests for dementia. Doctors and neurologists have to medical history, blood tests and CT scans to find out whether a person has dementia or not. However, the most potent evaluation comes from a set of questions that are asked to a patient suspected of having dementia. The ability to answer those questions correctly is one of the best diagnoses for dementia.
There is no specific treatment for dementia as it is not a curable disease and degenerates with time. However, medicines or drugs given for Alzheimer s can be given to people suffering from dementia.
Although results vary depending upon a person s lifestyle s and habits, doctors suggest eating healthy, exercising regularly, and stopping smoking and drinking may prevent some types of dementia.
The best treatment for dementia is to treat the person with care and love so that they don t feel neglected.
Dementia is often associated with old age but that is not always true. It is important to gain knowledge and educate others also.

Dementia - Quick Facts You Must Know About It!

Alzheimer's disease is a dynamic disease that causes loss of memory and other vital mental functions. To start with, someone with Alzheimer's disease may witness light confusion in the beginning and trouble recalling. In the long run, individuals with the disease may even overlook important individuals in their lives and experience emotional identity changes.

Dementia: Alzheimer s disease is the most widely recognised reason for dementia   a gathering of brain issues that causes the loss of intellectual and social abilities. In Alzheimer's disease, the brain cells deteriorate and die, bringing on an enduring decrease in memory and mental capacity.
Brain Cells: Despite the fact that the reasons for Alzheimer's is not yet completely comprehended, its impact on the brain is clear. Alzheimer's disease harms the brain cells. A mind influenced by Alzheimer's has fewer cells and fewer associations among surviving cells than a solid mind.
Brain Shrinkage: As more brain cells start to die, Alzheimer's prompts critical brain shrinkage. At the point when specialists inspect Alzheimer's brain tissue under the magnifying instrument, they see two sorts of irregularities that are considered to cause Alzheimer s. These are:
Plaque: These clusters of a protein called beta-amyloid may harm and crush brain cells in a few ways, meddling with cell-to-cell functioning. In spite of the fact that a definitive reason for brain cell passing in Alzheimer's is not known, the accumulation of beta-amyloid on the outside of brain cells is a prime reason.
Tangles: Brain cells rely upon an inner support and transport framework to carry the supplements and other fundamental materials through their long extensions. This framework requires the typical structure and working of a protein called tau. In Alzheimer's, strings of tau protein turn into strange tangles inside the brain cells. This may also cause the decrease of brain cells. 
Here are some more causes that can lead to this disease:

Age: Age is a most critical cause in the development of Alzheimer's disease. The probability of building up the condition increases after you reach sixty-five years of age.
Family history: The qualities you acquire from your parents can add to your danger of building up Alzheimer's infection. This may also contribute to the environmental factors which can cause this condition. In some families, a single gene creates Alzheimer s disease and the dangers of the condition being passed on are much higher.
Head injuries: Individuals who have had serious head damage have been observed to be at higher risk of building up Alzheimer's disease.
Cardiovascular diseases: Research demonstrates that few lifestyle components and conditions connected with cardiovascular disease can build the danger of Alzheimer's disease. These include smoking, obesity, diabetes, hypertension and high cholesterol.


Alzheimer's Disease - Reasons That Can Lead To It!

Aging comes with many health problems including mild hearing loss. Usually, this mild hearing loss does not come alone. According to medical studies, adults, particularly males with hearing loss, mild or severe, are at a higher risk of developing Dementia and Alzheimer s disease. The risk increases as the hearing loss worsen. People with mild hearing loss are at twice the risk of developing dementia compared to people with normal hearing.

Dementia is a group of symptoms and diseases that affects the thinking, memory and social abilities that interfere with the daily functioning of an individual. However, memory loss alone does not mean that one has Dementia. Out of the many causes, Alzheimer s disease is usually the cause of Dementia. Alzheimer s disease is a progressive disease that affects the brain cells to degenerate and dies, destroying memory and other mental functions. 

How Hearing Loss Causes Alzheimer s?

According to medical studies, hearing loss causes several brain changes which increase the risk of developing Dementia. Hearing loss can lead to brain shrinkage, the process in which the section of the brain responsible for hearing becomes inactive. This condition leads to loss of tissues and alterations in the brain structure, developing as the first connection between hearing loss and Alzheimer s. Studies show that the brain of people shrinks more quickly who have hearing loss as compared to the brain of an individual with normal hearing. 

The second link created with an overwhelmed or overloaded brain. In hearing loss, the brain works overtime in understanding what others are saying. When the brain strains too much only for hearing every time and every day, it exhausts an individual s mental energy and snatches the brainpower required for other important mental functions, such as thinking, remembering and acting. This can further lead to Dementia, Alzheimer s and other mental disorders. 

Hearing Aids to prevent Dementia and Alzheimer s

According to various studies, hearing aids are not only helpful in improving one s hearing but they can also preserve an individual s mental and emotional health. Early diagnosis and treatment of a possible hearing loss help reduce risks later in life.

At times, the symptoms of undiagnosed hearing loss are mistaken with the symptoms of Alzheimer s. Hearing impairment makes it challenging for an individual to listen and respond to verbal signs. It increases the feeling of confusion, paranoia, and isolation. 

Hearing aids can relieve the symptoms of Alzheimer s. According to a study hearing aids slow down the rate of memory loss and improve an individual s quality of life.

Takeaway

Adults, especially males with hearing loss have a greater tendency of developing Dementia and Alzheimer s. Hearing loss causes brain to overwork leading to the loss of important mental functions. Hearing impairment can worsen the symptoms of Dementia and Alzheimer s. 

Hearing aids do help in improving the condition and symptoms of Alzheimer s and improve one s quality of life. A timely diagnosis can make a big difference.

Dementia And Alzheimer's Disease In Elderly - Could Hearing Loss A Reason?

Chromosomal abnormality happens when a cell has too many or too few chromosomes. The most common form of chromosomal anomaly is Down s syndrome. If a parent has a chromosomal anomaly, she/he will pass it on to the child. PGD or Pre-implantation Genetic Testing aims to select only the embryos with normal chromosomal count and only these embryos are implanted to achieve a healthy pregnancy and bring down the number of children affected with a chromosomal anomaly.

The risk of Aneuploid pregnancy:

The older a woman is when she tries to conceive (aged 35 or more), the higher the risk of Aneuploid pregnancy (carrying a baby with genetic or chromosomal abnormality). Most of these pregnancies end in miscarriages and the few that come to term produce babies with chromosomal abnormalities.

Causes of Chromosomal Abnormality:

Usually, chromosomal abnormalities occur due to an error in the cell division. Meiosis refers to the cell division, which the sperm and the egg undergo during the development procedure. Normally, meiosis breaks the chromosomal material into two equal halves, so that each of the parents contributes 23 chromosomes to the pregnancy. However, when the number of chromosomes in the cell goes up or down than the normal, it results in genetic/chromosomal anomalies.

PGD Procedure for a Chromosomal Anomaly:

If a couple elects to go for Pre-implantation Genetic Diagnosis, they have to undergo ICSI Cycle. ICSI cycle initiates a fertilization cycle to produce embryos. When the embryos reach upto day 5 and blastocyst are formed, they are biopsied and further sent to genetic lab for detecting the chromosomal abnormalities. The embryos are incubated for the entire duration of the genetic screening. Only the embryos that the genetic test clears are implanted. PGD never reveals the gender of the embryo.

PGD can help detect the single genetic disorders that may lead to the following ailments:

  Cystic fibrosis
  Muscular dystrophy
  Tay-Sachs
  Sickle cell anaemia
  Thalassemia
  Turner syndrome

PGD is a revolutionary science that can help root out incurable disorders linked to genetics. It ensures that pregnancy is sustained until term and a healthy baby is born.

Suffering From Genetic & Chromosomal Anomalies - Know About PGD!

Every person is familiar with the remark  Stop fidgeting  but does anybody ever wonder why do humans fidget? Is there any scientific reason for such an action? This article will throw light on the underlying causes for what is known as fidgeting.

Fidgeting and its underlying causes

Scientific research has revealed that fidgeting has many benefits still most people get annoyed when they see another person twitching and tapping. Most people do this seemingly without any control over their movement when they are ordered to be still. Research shows that there is at least one biological reason to back this action.
Since the same brain area is used for movement and speech, it is only natural that gestures are interlinked with thorough preparation for a speech. People tend to move their hands more when they are looking for a word to say, but are not being able to find it. In a recent study, it was found that school children between the age of 6-8 years who use their hands a lot can come up with the right answers during lessons.
While this is one theory, another neurological theory suggests that a portion of the mental load is off-loaded through the process of fidgeting when people have to tackle complex problems or thoughts. The theory is called cognitive load hypothesis. The offloading mechanism frees up the mental faculties thus, devoting them to the mental process. While this may not be a definitive explanation for fidgeting, it does go to show that there is a link between a person s hand movements and their thought and speech process.
Other reasons for fidgeting

Other than the cognitive advantages, some evidence has also been found linking fidgeting with metabolism. People who fidget are found to have a higher metabolism and lower BMI. This difference can be seen between thin and overweight people. Fidgeting amidst lollygagging during the day helps burn up to 350 calories a day. Also, fidgeting among other incidental physical activity helps keep an individual fit.
Among other reasons, fidgeting also serves as a coping mechanism for people with ADD. If a person is engaged in something that he/she is not interested in then the additional sensory-motor input that is even slightly stimulating or entertaining helps the brain to get completely engaged. This helps to maintain focus on the actual activity being performed by the individual.
So, fidgeting helps distract that part of the brain that is getting bored. This helps the other parts of the brain focus better on the actual activity. This is known as floating attention which perhaps is an evolutionary trait that dates back to prehistoric times. In those times, the ability to focus entirely on a task with undivided attention was not favorable to the human since doing so could make them unaware of the enormous ravenous beast hiding behind the bushes.
Thus, though there is some degree of understanding is there when it comes to fidgeting, more research studies are required to gain further insight. Consult an expert & get answers to your questions!

Fidgeting - Why Do We Do It?

Schizophrenia is a disease of the mind that is usually degenerative in nature. The complex disorder is generally characterized by symptoms, such as delusions, hallucinations (both auditory and visual) and disturbances in speech and is usually chronic in nature. The symptoms are not regular and can appear at any point of time. So it is highly possible that a person suffering from schizophrenia may sometimes bear resemblance to any other normal person and all of a sudden, might exhibit symptoms typical of Schizophrenia.

The causes of Schizophrenia include:

Brain Dysfunction: Abnormalities in the cerebral cortex (the cerebrum s outer covering that is vital in regulating consciousness) of the brain is the most common cause of this disorder. This is due to the presence of abnormally enlarged ventricles in that region. The decreased brain size owing to the enlarged ventricles is often related to the hallucinations and delusions experienced by schizophrenics.
Genetic Factors: Studies have also stated  genetics  to be an important cause behind this disorder. Closer the family ties, higher the risks of transmitting the disorder.
Biochemical Factors: More than one neurotransmitter is being targeted by recent drugs to control schizophrenia.

Symptoms which most people do not experience normally, but are found in people diagnosed with schizophrenia are said to be positive symptoms. They are:

Hallucinations: These are sensory experiences of things that do not exist outside the mind. Hallucinations usually manifest in the form of auditory or visual images.
Delusions: Delusions on the other hand are false beliefs one has about oneself. Delusions are of 3 major types:
Grandeur: Wherein the person imagines himself to be a famous personality
Persecution: The belief that somebody somewhere is plotting against you and the whole world is going to get you.
Control: The belief that a larger force, let s say a witch, a demon or even a duck for that matter is controlling your actions.
These positive symptoms generally respond well to medications.
In addition to this, schizophrenics think and speak differently than the rest of the society. They jump from idea to idea, lose track of speech mid-way and often speak in fragmented and haphazardly joined sentences. They are, in fact, unable to fix their attention on anything in particular.
Examples of the most common negative symptoms include:

The flat effect: The individual basically shows no facial expression and always has a flat emotionless mask on while staring into space. At times, they have inappropriate reactions to situations. Example - they might laugh at somebody's death and cry ad get angry when something good happens. 
Avolition: This condition occurs when the individual just sit for hours doing nothing as well as behaves in a way lacking any motivation or enthusiasm.

Schizophrenia -  Can Biochemical Factors be the Cause Behind it?

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