The relationship between intelligence and brain size, both among people and between various species, has never been precisely well defined. People often believe that their outstanding psychological capacities must mean that they are superior to all animals as far as brain size is concerned. However, it is not true since whales and elephants have much bigger brains than humans and humans have the same brain-to-body mass proportion as mice do.

Here are a number of ways by which the brain size can be determined:

Encephalization remainder: Since it would be against human instinct to admit loss and defeat, researchers have created a measure to determine the brain size called the encephalization remainder. It is the proportion of actual brain mass with respect to the anticipated cerebrum mass for the animal s size (based on the suspicion that bigger animals require somewhat less brain matter with respect to their size, compared to little animals). By this metric, human beings prove to be the best, with an EQ of 7.5 outperforming the dolphin's 5.3 and the mouse's 0.5.
IQ testing: Without a solitary and evident method for measuring intelligence, some improved tests like IQ (Intelligence Quotient) are by and large acknowledged as a moderately decent working device. IQ estimations are not without issues, and there is a great deal of criticism about their significance. IQ testing uses government sanctioned tests, for example, the WAIS III (Wechsler Adult Intelligence Scale). The normal IQ is somewhere around 90 and 110. The scores beneath the normal may demonstrate changing degrees of pathology, for example, marginal intellectual function, or mental hindrance of different severity. Over the normal range is regularly connected with knowledge, splendour, talent, or genius. However, as with computers of a few eras, size and intellect do not precisely relate. Present day portable computers weighing around one or two kilogrammes can store more data and perform a greater number of assignments than supercomputers from the 1980s that used to possess expansive structures. This is a contrast amongst quantity and quality. Numerous scientists now hold the view that it is not the whole brain, which is bigger in a human with a higher IQ, yet rather certain zones that are denser and might be bigger. A fascinating late revelation is that these ranges can be expanded in size and enhanced in usefulness during the course of our life.
NeuroplasticityIt refers to the dynamic procedure of repair and maintenance that our brains are continually experiencing. We are conceived with around hundred billion neurones, yet lose around two hundred thousand a day to a procedure called pruning. As we develop and grow, pathways in the brain that are not required are detached, and the neurones pass on. However, in a compensatory procedure, new neurones are delivered and more detailed associations are built up between neurones that are more dynamic. This is the procedure of de-cluttering, in which our brains develop to work at most extreme effectiveness. If you wish to discuss about any specific problem, you can consult a Neurologist.

Brain Size - How It Is Related With Intelligence?

Surgery to remove abnormal growths of the brain, peripheral nervous system or the spine or any disorder can be tricky because the brain and the skull that shields it are complex areas. In the old days, open surgery was the only way to access the brain or spinal cord. But, with the invention of laparoscopy, keyhole surgery to treat neurological issues is gaining ground.

What is Neuroendoscopy? 
Neuroendoscopy is a surgical procedure that is favoured by doctors and patients alike because it is minimally invasive.
Before the surgery, you will be administered general anaesthesia so that you will be unconscious during the entire duration. During the surgery, the surgeon will drill a minute hole into your skull just above the eyebrows. You skull also has two natural openings. That is why the surgeon may make use of the nose or the mouth to access the region that needs to be operated upon.

Neuroendoscopy is useful because -

  It lets the surgeon reach regions that are not accessible with open surgery
  The tumour can be removed without any damage being done to surrounding tissues

An endoscope is a delicate device with a high-resolution camera mounted on it. There is an eyepiece on the other end. The device is also fitted with a light. When it is inserted into the brain, it lights up the passage and the eyepiece allows the surgeon to take a look inside. The camera sends a live feed of the path it is traversing and this guides the surgeon. When the tumour is reached, it is gently removed with other surgical instruments that too were inserted through the cavities or the drilled hole.

Benefits of Neuroscopy -
There are several advantages of relying on laparoscopy -

  The patient endures less pain
  Fewer chances of infection
  Faster recovery
  Very little scarring of tissues

Which Disorders call for Neuroendoscopy?
Any of the following disorders can be put to rights with a neuroendoscopic surgery -

  Pituitary tumours
  Rathke s cleft cysts
  Pineal area tumours
  Ventricular tumours
  Skull base tumours
  Brain inflammation triggered by an infection
  Chordomas
  Cerebrospinal fluid fistulas
  Trigeminal neuralgia
  Cerebral aneurysm

After Surgery-
Once you undergo the neuroendoscopic surgery, you will have to be rehabilitated so that your condition can be monitored round the clock. Neuroendoscopy is a state of the art clean and efficient surgery that is beneficial to both surgeons as well as the patients.

Know More About Neuroendoscopy And Its Uses!

There are two primary factors that are more likely to cause a stroke in a person i.e age and a family history. While both are inevitable, this necessarily doesn t have to be the fate of a person. Brain stroke is entirely preventable as with the case of other diseases. By working on the potential health risk factors, a stroke can be prevented. Here is a list of few such steps which, when followed can pay rich dividends to a person facing the risk of a brain stroke:

Blood Pressure: Blood pressure is the single most important factor that can increase the chance of a brain stroke. If a perfect blood pressure reading seems too difficult to achieve, a more realistic blood pressure target of 140/190 should be aimed for. Some of the common steps in order to achieve an acceptable blood pressure figure include reducing salt in the diet, exercising on a daily basis, regular intake of fresh fruits & vegetables and fast processed food containing processed fats. Finally, quitting drinking and smoking goes a long way in ensuring that a person is safe from strokes.

Losing Weight: Obesity increases the risk of diabetes and blood pressure subsequently increasing the risk of a stroke. Being overweight, therefore greatly increases the odds of a stroke. A BMI of 25 should be maintained by engaging in activities such as walking, running and playing on a daily basis.

Regular Exercise: Exercise is a clear mandate for people facing an increased risk of brain strokes. A moderate intensity exercise schedule for a minimum of 5 days per week is necessary. Some simple steps in order to achieve this include taking the stairs while climbing, joining a fitness club, 30 minutes of daily walk in a day etc.

Moderate Drink: Surprising as it may sound, moderate drinking on a daily basis can dramatically reduce the risk of a brain stroke. Red wine should be the choice of preference in this case. It should be ensured that the level of drinking does not surpass more than a glass. Regular drinking in excessive quantity can increase the chance of brain stroke.

Check For Atrial Fibrillation: This is a disease that is related to the heart due to an irregular heartbeat. There is a possibility of the clots travelling to the brain causing a brain stroke. Certain possible symptoms of this disease such as palpitation of heart and shortness of breath should be checked with a doctor to negate the chance of brain stroke. Certain blood thinners like warfarin and aspirin can shield against atrial fibrillation. A doctor has to be consulted before starting any medication related to the heart.

Top Ways To Prevent A Brain Stroke

The most powerful and amazing organ in our body is the brain. It differs from many other organs of our body not only by its shape, but also by its special type of cell called neurons. When these cells gets affected or dead it can never be reverted or regenerated which is the most exclusive nature found only in brain cells. The cells in other parts of our body has the capacity to regenerate (can be replaced or new one can be grown or produced), but brain cells are exception. Hence any damage to the brain, injury or trauma is really a crucial thing to be considered with utmost care.

Brain surgeries really need skill, proper training, confidence and intelligence to perform this highly complicated and risky surgery.

Purpose:
Brain surgeries are performed to:

Remove the brain tissues that are grown abnormally
Aneurysm is clipped to prevent flow of blood cliff off an aneurysm
Biopsy purpose or to remove the tumour
Make a nerve free
Drain the abnormal blood or clot collection or to drain any excessive fluid collection caused by infection.
To implant artificial electronic device as a treatment for conditions like Parkinson's disease
Types:

Biopsy: A part of brain tissue is removed for the brain or whole tumour is removed.
Craniotomy: The skull bone is opened to remove tumour, an aneurysm and drain fluid or blood from infection.
Minimally invasive endonasal endoscopic surgery: Endoscopic devices are inserted through the nose to remove the lesions or tumour.
Minimally invasive neuroendoscopy: Similar to endonasal surgery but small incision is made.
Risks:

Anaesthesia risks like breathing difficulty, allergic reaction to medications, excessive bleeding or clots and infection.
Risk related to the brain surgeries are seizures, coma, swelling of brain, infection to brain or meanings, surgical wound infection that intrudes to the brain structures, abnormal clot formation and bleeding.
General risks include muscle weakness, disturbances in memory, speech, vision, coordination, balance and other functions that are controlled by the brain.

Brain Surgery - Know The Purpose Behind It!

Polio is a virus that has the potential to infect any parts of the body including, but not limited to nerves and muscles. Primarily there are 3 types of polio namely, non-paralytic, spinal paralytic and bulbar. This disease shows minimal to no symptoms in more than 90 percent of the cases. 5 percent of the cases can show symptoms such as nausea, diarrhea, vomiting, sore throat and abdominal pain. Polio is a communicable disease and can cause massive damage if a proper dosage is not taken. It can spread through air, physical contact with an infected person, coughs etc.

Polio can cause paralysis: Polio has a far-reaching permanent effect on the body. It can cause paralysis on any of the limbs leading to permanent disability. This severely alters a child s life. The far-reaching consequences of the virus can only be negated through vaccination.
Weak muscle: Polio can result in weak muscles, respiratory problems and loss of reflex. If the breathing muscle collapses, it can result in the death of a person. Any of the above-mentioned symptoms can lead to weak body development altering the fate of a child.
It can spread fast and quick: Polio spreads very fast through the air, physical contact, saliva and water. It not only affects a single life but put millions at risk of the disease. A 1916 outbreak of the disease killed 6000 people in the United States and left several thousands of people disabled.
It reduces the risk of infection: 3 dosages Polio vaccination under the age of 6 can save a baby from getting polio in future. The body successfully creates polio antibodies from the vaccines and gets enough ammunition to fight it if the virus attacks it in future.
Social responsibility: Massive amount of awareness campaigns have been run by countries all over the world to permanently eradicate polio from the face of the earth. As per the latest reports, only 3 countries are reported to have babies affected with polio; Afghanistan, Pakistan and Congo. It is, therefore, a social responsibility to take part in the mission of removing polio from the face of the earth once and for all.
Save future generation: Although polio is not known to be a disease which passes through heredity, there still lies a chance for the future generation to get this disease. In order to negate that from happening, it makes sense to get the vaccines on time.
Give your kid a head start: Every kid deserves to have an equal amount of privileges like others. One small mistake on part of the parents can heavily cost a child s future. In order to make sure your kids grow up with any apprehension of polio, it is very important to treat them with polio vaccines.

Polio Vaccination - Why Is It so Important?

Grading of brain cancer is entirely different as compared to the staging of other cancers in the body. Cancer in the breast, lung, colon etc. are staged depending on the possible spread, location of a tumor and lymph node involvement etc. However, brain tumors are graded based on the aggressiveness of the tumor cells under a microscope. The resect ability and the grade of the tumor cells guide a doctor on the treatment decisions. The decision of a brain surgery depends on factors such as the location, spread of a tumour and the general health of the patient.

Types of Brain Tumor Grading:

Grade 1 tumor- These sets of tumors are medically known as the juvenile pilocytic astrocytoma and subependymoma. They are slow growing and non-invasive. There is a likelihood of the patient getting cured with surgery.
Grade 2 tumor- These are brain tumors that do not possess dead cells as part of the tumour. But, they do portray a lot of abnormal cells. Tumors of this type can be categorized under oligodendroglioma, astrocytoma, and ependymoma.
Grade 3 tumor- Tumors of this type are graded based on the cell type of the cancer cells. For instance, an anaplastic astrocytoma is a grade 3 tumor that has no dead cells but possesses dividing cells. In contrast, anaplastic ependymoma and anaplastic oligodendroglioma are grade 3 tumor cells that have dead cells in them.
Grade 4 tumor- Tumors of this type are referred to as glioblastoma. The tumor cells are actively dividing, the growth of blood vessels is witnessed and areas of dead tissue keep expanding.

Treatment options:
Surgery- If the location of a brain tumor is such that it is accessible to a surgeon, the latter goes ahead and removes most of the tumor if not the whole. If, however, the brain tumor cells are placed very near to the surrounding very sensitive brain tissues, a doctor might remove a small portion of the tumor to curb its growth.
Radiation Therapy- This mode of treatment uses high energy X-ray beams to kill targeted cells of the brain. External beam radiation usually targets a small area of the brain. A whole brain radiation, on the other hand, is usually employed when a tumor has spread to most parts of the brain. Radiotherapy is now so evolved that it is highly targeted to tutor cells that kills cancer and spares normal brain .
Chemotherapy- Chemotherapy employs drugs to kill cancer cells. Chemotherapy can either be taken in the form of an IV or in the form of pills. The dosage of chemotherapy is decided based on the concentration of cancer cells, spread frequency, platelet count of the patient etc. The most common chemotherapy drug that is prescribed by doctors to fight cancer cells is temozolomide.

Brain Tumor - Stages and Treatment!

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