Causes, Signs And Symptoms Of Brain Tumors

What is Brain Tumor?

Brain Tumor

This is the name given to a number of tumours that can affect the brain, where a group of cells grow out of control too quickly and too irregularly. This is the basis for all cancers, and there are different types affecting the brain. These are named depending on the area and cells affected, and there may be more than one name for one type of tumour, which can be confusing. Tumours that originate solely in the brain are called primary tumours whereas other body tumours that have spread to the brain are called secondary tumours.

What causes Brain Tumour?

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What is Influenza Or Flu And What Causes Flu?

Influenza Suffer

Like a cold, influenza or flu means you have picked up a virus, which is passed on by coughing, sneezing or physical contact. In both cases you cannot treat or cure the infection itself, only its symptoms. Antibiotics will make no difference to flu unless you have a ’secondary’ infection of the middle ear or chest.

A heavy cold can easily be mistaken for influenza, although flu is much less common and often spreads rapidly as an outbreak or, worse, an epidemic. The effects of flu, which infects the body’s breathing passages or respiratory tract, are more severe and can take longer to clear up than cold symptoms.

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What Is Head Lice And What Causes Head Lice Infestation?

Head Lice

Head lice are tiny insects – no bigger than the head of a pin – that live on human hair, and feed by sucking blood from the scalp. Their egg cases are called ‘nits’ and these are always hatched or empty egg shells so their presence does not necessarily indicate active infestation. Once hatched, these shells are harmless. Head lice most commonly affect children, but adults in infected families can also get them. Lice cannot survive out of the hair, and cannot be transferred to animals or pets. They are spread only by relatively prolonged head to head contact, not by brief or fleeting contact, and they walk – not jump – from one person to another.

Any lice which are seen on someone’s clothes or back are incapable of transferring to another person and it is impossible to pick them up from towels, bedding or clothing. It is a fallacy that lice only live in dirty hair – they are found just as frequently in scrupulously clean households. They are seen most frequently in children between the ages of 4 and 11, with girls showing a slightly greater infection rate, possibly due to the length of their hair.

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What Is Glaucoma?

Glaucoma

This is a disease of the eye, where the normal fluid pressure inside the eye gradually increases, leading to problems with vision or even blindness on occasions.

What Causes Glaucoma?

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What is Stroke?

A stroke is when a part of the brain suddenly becomes unable to function. This is due to a lack of oxygen, and so all strokes have the common factor of disease affecting the blood supply to the brain. This usually occurs with little or no warning, and causes weakness and paralysis of any part of the body depending on the part of the brain affected. In the United Kingdom, someone has a stroke every 5 minutes.

What Causes Stroke?

The main cause of a stroke is a blockage to the blood flow, or the bursting of an artery to the brain. When an artery is blocked, this is called a cerebral infarction. When there is bleeding into the brain, it is called a cerebral haemorrhage. There is a third kind of stroke, called an embolic stroke. This is where a blood clot travels through the body and blocks an artery in the brain to form a plug, or embolism.
The diseases which cause strokes to occur are similar to those which cause heart disease. Arteries in the brain may block due to them being furred up by fatty material in the same way that heart arteries become blocked and cause heart attacks. Blood clots can arise from heart diseases where the heart has an irregular rhythm, or where there is damage to the valves of the heart. When a cerebral haemorrhage occurs, the commonest cause is due to a weakness in the wall of an artery – called an aneurysm. These are sometimes present in people from birth as an inherited weakness, but more commonly are the result of high blood pressure.

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