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?

A brain stroke can affect anyone at any point of time when the supply of blood to the brain is interrupted. It can threaten major physical functions and can prove to be fatally dangerous at times. The brain stem which is placed right above the spinal cord controls the breathing, heartbeat and levels of blood pressure. It is also in charge of controlling some elementary functions such as swallowing, hearing, speech and eye movements. 

What are the different types of strokes?
There are three main kinds of stroke: ischemic strokes, hemorrhagic strokes and transient ischemic attacks. The most common type of brain stroke is the ischemic stroke is caused by narrowing or blocking of arteries to the brain, which prevents the proper supply of blood to the brain. Sometimes it so happens that the blood clot that has formed elsewhere in the body have travelled via the blood vessels and has been trapped in the blood vessel which provides blood to the brain. When the supply of blood to a part of the brain is hindered, the tissue in that area dies off owing to lack of oxygen. The other variant of brain stroke is termed as hemorrhagic stroke is caused when the blood vessels in and around the brain burst or leak. Strokes need to be diagnosed and treated as quickly as possible in order to minimize brain damage.  Remembering the F.A.S.T. acronym can help with recognizing the onset of stroke (Face, Arms, Speed, Time - explained below). 

What are the common symptoms of a brain stroke?
The symptoms of the brain stroke are largely dependent on the area of the brain that has been affected. It can interfere with normal functioning, such as breathing and talking and other functions which human beings can perform without thinking such as eye movements or swallowing. Since all the signals from the brain as well as other parts of the body traverse through the brain stem, the interruption of blood flow often leads to numbness or paralysis in different parts of the body.

Who is likely to have a stroke?
Anyone is at a risk of developing brain stroke although ageing is directly proportional to the risk of having a stroke. Not only that an individual with a family history of brain stroke or transient ischemic attack is at a higher risk of developing stroke. People who have aged over 65 accounts for about 33 percent of all brain strokes. It is important to point here that individuals with high blood pressure, high blood sugar, cholesterol, cancer, autoimmune diseases and some blood disorders are at a higher risk of developing brain stroke.

There are a few factors which can increase the risk of developing stroke beyond any control. But there are certain lifestyle choices as well which aids in controlling the chances of being affected by stroke. It is crucial to refrain from long-term hormone replacement therapies as well as birth control pills, smoking, lack of physical activity, excessive use of alcohol and drug addiction. A brain stroke is a life-threatening medical condition, and when an individual has symptoms that resemble that of stroke, it is crucial to seek immediate medical help.

Treatment for stroke

Treatment depends on the type of stroke.
Ischemic strokes can be treated with 'clot-busting' drugs.
Hemorrhagic strokes can be treated with surgery to repair or block blood vessel weaknesses.
The most effective way to prevent strokes is through maintaining a healthy lifestyle.
What is TPA?
TPA is a thrombolytic or a  Clot Buster  drug. This clot buster is used to break-up the clot that is causing a blockage or disruption in the flow of blood to the brain and helps restore the blood flow to the area of the brain. It is given by intravenous (IV). This can be given only within 4.5 hrs of the onset of symptoms

Time is brain

Remember Every second Loss means brain cells die.
Rush to the nearest Stroke Centre whenever you experience such symptoms.
U can save the brain cells dying if you reach within 4.5 hrs by the CLOT BUSTER. 
Endovascular procedures 
Another treatment option is an endovascular procedure* called mechanical thrombectomy, strongly recommended, in which trained doctors try  removing a large blood clot by sending a wired-caged device called a stent retriever, to the site of the blocked blood vessel in the brain

Stroke prevention
The good news is that 80 percent of all strokes are preventable. It starts with managing key risk factors, including 

High blood pressure,
Cigarette smoking,
Diabetes
Atrial fibrillation and
Physical inactivity.
More than half of all strokes are caused by uncontrolled hypertension or high blood pressure, making it the most important risk factor to control. 
Rehabilitation
The best way to get better after a stroke is to start stroke rehabilitation ("rehab"). In stroke rehab, a team of health professionals works with you to regain skills you lost as the result of a stroke.

Brain Stroke - Things You Must Know!

Firstly, what you need to realise is that Alzheimer s is not dementia and the main point you need to remember about the difference between the two is that the former is a disease while the latter is a syndrome. Alzheimer s is a neurodegenerative disease, it breaks down the cognitive functions of the brain and reduces a person s ability to function properly. It s one of the foremost reasons for untimely senility in middle-aged to old-aged persons.

It can be a scary time for the patient themselves as well as for friends and family alike but fear not, there are ways to reduce the chances of suffering from this painful predicament. Here are a few easy hacks to keep in mind to stave off the risk of Alzheimer s:

Fix your diet: Cut down on saturated fats and construct a diet combining lots of healthy vitamin and mineral rich foods, fruits and vegetables. Vitamin E is essential as well as vitamin B12 which can also be taken in the form of supplements. Vitamin E can be found in foods like spinach and even nuts. Rush University Medical Centre in Chicago has, after a lot of research, developed the MIND and DASH diets. The Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet collates portions of the DASH (Dietary Approaches to Stop Hypertension) diet to create the perfect combination that has been shown to reduce the risk of Alzheimer s by 53 percent.
Exercise mental and physical: A sedentary lifestyle is one of the major causes of Alzheimer s because it leads to slower brain activity and an overall unhealthy lifestyle. To break out of this you need to regularly exercise and not just physical exercises but also mental exercises such as solving mental maths and crosswords and reading books and newspapers. There are a lot of apps concerning games that help boost brain activity on the market that can help as well. Physical exercise can include swimming, brisk walking, joking and even gardening.
Reduce stress: Stress proves to be a huge issue for the brain contributing to its damage by putting a lot of pressure on it. Try to relax more by improving your sleep cycle, resting as and when required, and not overworking yourself.
Aromatherapy: Essential oils have been shown to work wonders, by reducing stress and relaxing the mind. Lavender, rosemary, lemon and even orange are some great options you can try out. These oils can help rejuvenate damaged brain and nerve cells.
Meditation: Studies have shown that regular meditation helps boost grey matter in the brain, and along with yoga, keeps the minds and bodies of middle-aged people active and better focused contributing to the overall health of the brain.

Life Hacks! How To Beat Alzheimer's

Do you know that Huntington s disease is an inherited disease? This condition leads to the progressive degeneration of the nerve cells present in your brain. Huntington's disease has severe impact on several functional abilities of an affected person and results in psychiatric, thinking and movement disorders.

Causes
Huntington s disease occurs from an inherited defect present in a single gene. It is a form of autosomal dominant disorder, which indicates that a person requires just one copy of the defective gene for developing the disorder. Except the genes on the chromosomes, two copies of every gene are inherited by a person. The affected parent may pass along the defective gene copy or the healthy copy.

Symptoms
Commonly, the symptoms of Huntington s disease start appearing during midlife. It may also affect a person during childhood. The symptoms of this disease vary from person to person. Abnormal movement and weight loss are common symptoms, which occur in all stages.

Early stage

The usual early stage symptoms include the following:

Slight coordination changes, which affect balance and make you clumsy
Uncontrollable fidgety movement
Stiffness and slowing
Irritability and depression
Problems with thinking in difficult situations
Middle stage
With passing time, the symptoms start interfering more with the patient s daily life and activities. You may start dropping things, face trouble with swallowing, and talking. Staying organized may get tough. Certain emotional changes are indicated.

Later stage
In the later stage of Huntington s disease, a patient becomes dependent on others for taking care of them. A patient cannot walk or speak, and fidgety movements are likely to become more severe or may subside.

Treatment
Huntington s disease has no fixed cure. Several measures are followed for managing the symptoms. They are as follows:

Medications are used to manage fidgety movements. Other medicines are also used for controlling any other side effect experienced.
Speech or language therapy may be beneficial in case of speech and swallowing problems.
Physical therapy may help you in improving your control movements. Assistive devices like handrails can be used for managing your changing physical abilities.
Nutritional support is used in which special utensils are used to focus on a nutrient-rich diet.
Exercise is also important for patients with Huntington s disease as it enables them to stay active and fit.
In case you experience any symptom of Huntington s disease, it is important for you to consult a doctor immediately. This is a severe disease and early diagnosis and treatment will prevent the condition from worsening.

Huntington's Disease - Understanding the Stages of Symptoms!

We're all guilty of making fun of snorers, but sometimes this snoring can be a symptom of sleep apnea. Sleep apnea is a condition where breathing is not continuous and may start and stop many times while asleep. This affects the quality of your sleep and in turn can affect many aspects of your health including your cardiovascular health. Here's how:

High blood pressure
When a sleep apnea patient's breathing stops, the oxygen levels in the blood also suddenly fall. This can increase your blood pressure. High blood pressure means that the heart muscles need to work harder to pump blood through the body.

Cardiomyopathy
As a result of high blood pressure, the heart walls may become thicker and the heart muscles become stiffer. This is known as cardiomyopathy. As this condition worsens, the heart becomes weaker and is unable to maintain a regular rhythm. This can eventually lead to heart failure.

Arrhythmia
An irregular heartbeat is also known as arrhythmia. This may also be related to the changes in the heart's structure that follow the drop in blood oxygen levels. In many cases, arrhythmia has no visible symptoms and can often go undiagnosed. This can result in the formation of blood clots in the atria which can lead to a stroke.

Sleep apnea is easy to diagnose. If the doctor feels that you show symptoms of sleep apnea, you may be asked to stay on the hospital overnight and undergo a sleep evaluation. This tests a variety of body functions including brain activity, eye movements, heart rate, breathing patterns and blood oxygen levels.

Treatment for sleep apnea depends on the causes for this condition. If you are overweight, regular exercise and a change in diet can help you lose the excess weight and cure sleep apnea. Similarly, if your sleep apnea is triggered by an allergy, treating the allergy can help cure the sleep apnea. Other forms of treatment for sleep apnea may include:

Continuous positive airway pressure (cpap)
This is a machine which pumps air into the body through a nasal mask. By keeping the pressure in the machine higher than normal air pressure the upper airway passages are kept open and hence the quality of your sleep is improved. An auto cpap machine can modulate the air pressure such that it is higher when you inhale and lower when you exhale.;

Oral devices
Your doctor may suggest oral devices that allow you to keep your mouth open while you sleep. This is easier to use than cpap machine but less effective. Surgery is the last resort when it comes to treatment for sleep apnea.

Sleep Apnea and Its Link to Heart Failure

Epilepsy is a condition that starts in the brain and causes seizures in which the patient loses consciousness and has convulsions. He also jerks his arms and legs along with trembling and frothing from the mouth.
The lesser known fact about epilepsy is that there are many types of epileptic conditions-over 40 - and similarly, there are numerous drugs available to treat your epileptic disorder and prevent seizures. Your doctor will diagnose your type of epileptic disorder and prepare a treatment plan for it.

Types of epileptic seizures
Epileptic seizures are generally categorized as either partial or primary, generalized depending on where they originate in the brain. Partial seizures are less intense and they start in one section rather than the entire brain. If you have this type of seizure, you will be aware of what s happening to you. The other type of seizure affects a larger part of the brain. Here you may have difficulty understanding what's happening to you. Since these spread to the entire brain, you lose consciousness and start convulsing.

Having a seizure can put you at risk for serious injuries including head injuries.
So, if you close to you suffers from epilepsy, it's critical to your health and well being to educate yourself about your condition and have an action plan in place to tackle the seizures which can happen anywhere, and sometimes with no one to assist you or him actively.

Here is what you can do to manage epilepsy-

Educate yourself: You must know as much as possible about your condition. Know your symptoms and learn to recognize the symptoms preceding a seizure. Also, educate your friends and family about epilepsy so that they can support you during a seizure. Educate your family to do the right things when you have a seizure.
Make a seizure response plan: This plan should list the names and numbers of your doctors and two emergency contacts.
Other things you can do as an epileptic:
Antiepileptic drugs are quite successful in preventing seizures but they should be taken as prescribed. Don t change your dosage before talking to your doctor.
Sleep properly as lack of sleep can trigger seizures.
Exercising regularly can help keep you physically healthy and reduce depression and also help in managing seizures.
Manage your stress levels, limit alcohol and cigarettes.
On the other hand, if your family member or friend has epilepsy, this is what you can do:

Roll the person onto one side during a seizure.
Place something soft under the person s head.
Loosen tie and top buttons.
Don t put an object in an epileptic s mouth. It can hurt his/her teeth.
Don't try to restrain him during a seizure.
Clear away stones and other dangerous objects if the patient is thrashing around.
Time the seizures and be calm during them.
Don t leave the patient alone.

Epileptic Conditions - How To Deal With Them?

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