What is Parkinson s disease?
Parkinson s disease is a progressive and degenerative disorder of the Central Nervous System that mostly affects older people. It is a chronic disease and the symptoms develop over a period of time. The characteristic symptoms of Parkinson s are rigidity, shaking, bradykinesia (slowness in movement) and shuffled gait. Anxiety and depression also seem to be common in advanced stages of Parkinson s disease. In addition to the motor symptoms, the cognitive function of the brain is also compromised.

Degeneration of the nerve cells in the substantia nigra of the brain results in the reduction in production of dopamine which is a neurotransmitter in the brain. Neurotransmitters relay impulses from one nerve to the other. This is what is mainly responsible for the motor symptoms in Parkinson s. Although, Parkinson s is not a curable disease, it can be controlled and the progress of the disease can be kept in check with certain medications.

What causes Parkinson s disease?
The cause of Parkinson s is mostly idiopathic, i.e. the cause is unknown and is not specific. However, there have been cases which show that it can be attributed to factors such as genetic and environmental factors.
What are the symptoms of Parkinson s?

The symptoms of Parkinson s can be classified as Motor symptoms and Non-motor symptoms:

Motor Symptoms 

Bradykinesia: Slow movement
Tremor of limbs
Rigidity or stiffness of trunk and limbs
Impaired balance and difficulty in coordination or postural instability
Non-motor Symptoms 

Depression
Anxiety and fear
Loss of energy and fatigue
Constipation
Excessive salivation
Weight gain or weight loss
Cognitive problems such as difficulty in remembering, confusion, dementia
Parkinson s disease is not curable, but when detected early, medicines are prescribed to give symptomatic relief. Dopamine substitutes are prescribed to the patient to relieve the motor symptoms.

Parkinson's Disease - Understanding The Motor & Non-motor Symptoms!

Alzheimer s disease is a neurological, irreversible, progressive brain disorder. It is a chronic neurodegenerative dementia that causes the death of brain cells, causing memory loss and cognitive decline. It affects a person s thinking and behavior. The symptoms develop slowly and get worse as time passes.

Causes:
As it is a kind of dementia, Alzheimer s is caused by the death of brain cells. Over a course of time, brain cells die progressively and at the end, the tissue is left with fewer nerve cells and connections. As a result, the total brain size shrinks. Tiny inclusions called plaques and tangles can be seen in the postmortem. These cannot be seen or tested in a living Alzheimer s affected brain. These plaques are given the name  amyloid plaques  because they are found among the dying cells of the brain when a protein called beta-amyloid builds. The tangles stay in the neurons; they are formed from a protein called tau.

There are several reasons behind all this, some of which are listed below-

Anti-anxiety medications
Hitting on the head too many times
Regularly sleep-deprived
Loneliness
Diabetes in the brain
Old age
Genetic line
Down s syndrome
Cardiovascular diseases
Symptoms:
Alzheimer s disease damages the brain, so the clinical signs and symptoms begin to show very early. The symptoms are-

Memory loss
Agitation and mood swings
Poor judgment
The trouble with money calculations
Difficulty doing familiar tasks
Trouble in planning or solving a problem
Confusion with time and place
Difficulty in communicating
Loss of motivation
Inappropriate behavior
Aggressive personality
Childlike behavior
Preventing Alzheimer s disease:
Alzheimer s disease ultimately results in death. Even if there are treatments, they cannot fully cure it. So it s better to try to prevent it before it happens. Ways to prevent Alzheimer s disease are-

Eating more fruits and vegetables.
Eating berries every day.
Increasing omega-3 fatty acids.
Taking folic acid supplements.
Drinking grape juice or red wine with evening meal.
Doing the Mediterranean style diet.
Controlling the blood pressure.
Having strong social support.
Treatment of Alzheimer s disease:

Treatment of Alzheimer s disease is a long time process.
First of all, doctors perform a physical exam to check the overall neurological health. By this, they check muscle strength, reflexes, walking ability, sense of sight and hearing, coordination and balance.
Then comes the blood test to find the cause of confusion and memory loss by checking the thyroid disorder and vitamin deficiency.
Then they perform the neuropsychological test and check the mental status.
Then there are other tests, like MRI, CT, and PET.
After all this, drugs are given and a safe and supportive environment is created with proper exercise and nutrition.
Alzheimer s disease is undoubtedly the worst kind of disease. Hence, it is highly recommended to contact a doctor as soon as any symptom is noticed.

All About Alzheimer's Disease!

Addiction is one of the most common mental health problems faced by people around the globe. This could be an addition to alcohol, nicotine or drugs. Addition usually begins in a person s teenage years and if left untreated, may continue into adulthood. As with other health issues, addiction worsens with time and the later it is diagnosed, the harder it is to treat.

Alcohol Addiction
An addiction to alcohol is termed as alcoholism. In some cases, it can make the person drink heavily on a day to day basis. In others, it may cause binge drinking at regular intervals. In either case, the person cannot stay off alcohol for extended periods of time. Alcohol addiction is hard to recognize given the social acceptability of having a drink. If left untreated, this condition can be fatal and cause ulcers, bone loss, liver disease, an increased risk of cancer and suppressed immunity.

Nicotine Addiction
Like alcohol addiction, nicotine addiction is hard to spot given that people smoke openly. However, when a person cannot stop smoking even though he or she is aware of its ill effects, treatment needs to be sought. Nicotine dependence affects mood swings and has a physical effect on the body as well. It can cause anxiety, restlessness, frustration, loss of appetite, insomnia, constipation as well as heart disease and lung disease. It can also increase the person s risk of suffering from cancer, infertility and respiratory infections.

Drug Addiction
This is the most serious of the three. Drugs can take many forms. Some are smoked while others are chewed or injected into the body. It is a misconception that drugs are common only amongst the lower rungs of society. Drug addiction can cause mood swings, social withdrawal, memory loss, shortened attention span, poor judgment and other such changes in behavior.

All forms of addiction can be prevented and treated. Thus, it is important to not ignore early signs of addiction and speak to the person concerned or his or her caregiver. In some cases, treatment can take the form of outpatient therapy while in others; the patient may need to stay in a treatment facility for a specific duration of time. Even after treatment, relapses are possible. Hence, the patient needs support from this family and friends. It is also important for the patient to continue therapy in some form or the other even after coming out of the treatment facility. 

Drug & Alcohol Addiction - How To Overcome It?

With age, most body organs begin to deteriorate in their function. This happens to the brain also, thereby reducing the overall speed of functioning of most organs. While slowing of bodily movement is visible, the internal organs functioning also slows down, which is not that obvious. Memory loss or dementia is one of the main manifestations of this degeneration of the brain.

Alzheimer s is the most common form of dementia, and the associated symptoms includes reduced reasoning abilities and cognitive defects. Though it is seen only in the elderly, not all elderly people will have Alzheimer s. The overall quality of life of the affected person is reduced with difficulty remembering things that were recently learned. It is a progressive disease and as it gets more severe, a full-time caretaker may be required.

Causes: The brain cells are affected by protein masses known as plaques and tangles. These hamper the way communication between the brain cells happens as well as affect nutrition from reaching all parts of the brain. This leads to shrinking of the brain, eventually leading to memory loss and other problems. There is also a strong genetic linkage, as most people with Alzheimer s have the lipoprotein A gene.

Symptoms: Though memory loss is the most common symptom, there are other symptoms:

Being confused about places, people, and times
Inability to find the right words during conversations
Regular objects are misplaced
Becoming irritable, (in someone who was not so previously)
Mood swings
Personality changes
Inability to organise thoughts
Not able to make the right decisions
Repetitive talks and actions
Forgetfulness (not something the person always does)
Difficulty with numbers (again, not something calculations
Difficulty managing everyday tasks and minor problems
Suspicion of others (like immediate family members and friends)
Risk factors: While age is definitely a risk factor, the fact that not all aged people develop Alzheimer s is to be borne in mind. Other risk factors include the history of stroke, high cholesterol, high blood pressure, diabetes, smoking, obesity, and poor lifestyle choices.

Diagnosis: While there is no definitive way to diagnose Alzheimer s, symptoms along with brain scans and neuropsychological function testing are useful ways to confirm the diagnosis.

Treatment: This is aimed at two things reducing the rate of disease progression and treat (or reverse) symptoms if possible.

Cholinesterase inhibitors improve cellular communication in the brain and also manage depression and agitation. Memantine is used to slow the pace of disease progression.
In people with the disease, small changes are useful to help them with the symptoms. These include keeping essential things like keys and wallet in the same place, keep a daily diary to help them remember things, keep pictures of friends and family within visible distance.

Alzheimer's - An Overview!

The risks and harms of smoking are pretty much common knowledge to most people. Especially when the pack of cigarettes practically screams it out to you in bold letters. Yet, as statistics would say, smoking in young adults has been on the rise in the recent years. What makes them take this step? Maybe it is peer pressure, or maybe they do it for the thrill of it. Every country takes a great initiative in educating their population, yet some fail to understand the complexity of the situation.

Here are some of the reasons that will tell you that even a single puff of the deadly tobacco can severely harm your health and general well-being

Cigarette smoking is the leading cause of cancer. It can cause cancer in most organs of the body. Smoking cigarettes can cause the following
Nose cancer
Throat cancer
Larynx cancer
Mouth cancer
Oesophageal cancer
Lung cancer
Liver cancer
Cervix cancer
Stomach cancer
Kidney cancer
Colorectal cancer
Cervical cancer etc.
Smokers are more prone to respiratory diseases because smoking is capable of compromising the immune system of the body.
Autoimmune diseases such as Crohn s disease and Rheumatoid Arthritis are more likely to occur in smokers as their immune system is compromised by smoking.
Smoking has been linked to Diabetes type 2. This type of diabetes develops during adulthood. The more cigarettes a person smokes, the more likely is the person to develop this disease.
Smoking puts you at risk of developing several heart diseases such as angina, heart attacks, etc. because the nicotine in the body results in the lowering of good cholesterol. This causes deposition of bad cholesterol in the arteries.
Tobacco can cause tooth decay and several other oral problems such as gingivitis and other problems of the gum.
Cigarettes constrict your blood vessels. This constant narrowing of blood vessels can cause erectile dysfunction in men and leads to the infertility in both men and women. It also makes them difficult to achieve orgasms.
You might find yourself craving for cigarettes when you re stressed out. This is because the effect of nicotine in the cigarettes is lowered by the hormone produced during a stressful situation, i.e. cortisone.
Nicotine that causes momentary central nervous system stimulation can cause addiction and dependence.

How Smoking is Harmful For Your Health?

When it comes to the brain and the iq, is bigger the better? does size really matter? is there really a connection between the size of your brain and intelligence? with the help of findings by neurologists 
And scientists, we seek to find out!

1. Ailments and the brain: scientists have found that children with autism have a brain that has grown in a disproportionate manner in the very first year of their life. This prevents the child from making connections with normal behaviour. On the other hand, children and adolescents who suffer from attention deficit hyperactivity disorder or adhd have shown signs of having a much smaller brain size. Many scientists have shown that the size of the brain shrinks as we age, and this does not have any visible effect on our cognitive abilities.

2. It's all relative: the size of the brain does not really have a bearing on the way a person's cognition gets shaped. Even large mammals like elephants and whales are finally hunted and tamed by humans who have smaller brains in comparison. The brain is made up of billions of neurons which need to function properly. It may be seen that scientists consider the brain mass in relation with the rest of the body so as to speculate about the cognitive abilities of the person. Why is this required? large animals need a well functioning and proportionate brain size to control and run their organs with proper cognition for satisfactory results, which is what we humans seem to have done.

3. Neanderthal brains: historically, the earliest man or the neanderthals are said to have had larger brains than we do. These people are believed to have brains that are at least 10% larger than the brains that we have in our modern times. The shape of their brain was different too. They were also heavily muscled people which had a bearing on the size and shape of the brain and bodies as well as the lean tissue within the brain. They also survived very successfully for a period of over 200, 000 years, which obviously points to some form of elevated cognition, as per many scientists.

4. Animals: while animals with small brains like lizards and reptiles do not perform too well on iq tests, the animals with bigger brains like elephants and dolphins perform much better. But the medium sized brains of monkeys, lemurs and other animals are said to perform in the best manner. The correlation between the body size and the brain does not seem to hold good here, as per various researches.

So the verdict as per medical science and research stands divided!

Is There an Association Between Brain Size and Intelligence?

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