A headache involves having mild to severe pain in a specific, or many, areas of the head or back of the neck. Countless “types” of headache exist, all caused by a variety of reasons, and although they can be painful and rather annoying, they are, for the most part, not a sign of a serious disorder and in most non-chronic situations can be treated and relieved by medicines.

Although there is no single cause of a headache, several causes have so far been identified by the medical community and these can fall into two main categories – tension headaches and migraine headaches. Tension headaches are the result of contraction of the neck and head muscles and are the most common type of headache, accounting for nearly seventy percent of cases. Some causes of muscle contraction linked with tension headaches include stress, fatigue, eye strain, poor posture, hormonal changes, and alcohol or tobacco use.

Migraine headaches occur when blood vessels located in the neck and head constrict, which therefore leads to decreased blood flow in them. Symptoms of migraine include a throbbing pain usually on one particular side of the head, along with a feeling of nausea and sensitivity to sound or light. Migraines are usually chronic and affect more women than men

Headache

Although for the most part headaches are not a sign of anything sinister, as mentioned above, there are certain symptoms that need to be looked at by a doctor or physician immediately. These include a sudden onset of headache accompanied by vomiting or nausea; recurring headaches which are accompanied by memory issues, tiredness and difficulty in concentrating; neck stiffness accompanied by high fever; fits; vision irregularities, i.e. light flashes; trouble controlling, or loss of feeling in, the limbs; and difficulty in communicating while being tired and apathetic.

Indigestion, or dyspepsia, describes the discomfort or pain felt in the chest or upper abdomen area normally soon after eating a meal. It sometimes describes the burning sensation felt in the chest, otherwise known as heartburn.

Indigestion normally occurs when the acid found in the stomach starts to flow back up the oesophagus (this is the pipe that attaches the mouth with the stomach). Although normally occurring after eating a meal, it can happen at any time. Symptoms of indigestion include discomfort, pain or a feeling of fullness in the upper abdomen or chest area; loss of appetite; heartburn; nausea; and burping or flatulence.

Occurrences of indigestion can be triggered by smoking; excessive alcohol use; anxiety or stress; some medicines; some foods; or not eating regularly which leads to a buildup of excess acid in the stomach.

Individuals can reduce the symptoms of indigestion by doing some of the following: stopping smoking; cutting down on coffee, tea, alcohol and fatty foods; eating three hours or more before going to bed; stop overeating or eating too fast; and reducing stress.

Antacid medication is an over-the-counter treatment that is effective at relieving symptoms of indigestion. These help neutralize excess acid in the stomach and usually contain aluminum or magnesium. Others contain an ingredient known as alginate which acts by forming a barrier of sorts that floats at the top of the stomach, therefore preventing reflux.

First of all we should try and explain what influenza (flu) is. There are three main types: A, B and C, with B and C only infecting humans and influenza A being able to infect humans, animals and birds. The surface of each influenza A virus contains two types of protein, neuraminidase (N), of which there are nine types, and haemagglutinin (H), of which there are sixteen types. Consequently, there are lots of sub-strains of the influenza A virus and they are given names depending on the type of proteins found on the surface. Examples of these sub-strains could be H1N1, H1N2 and H2N3.

Another characteristic of the A strain is that it has the ability to produce new strains – in other words, mutate. It is as these new strains occur that new types of flu are discovered.

Bird flu is a strain of influenza A that affects birds, of which all species can be affected. Whereas wild birds can carry the disease when they migrate, they don’t usually become ill with it whereas poultry birds like turkeys and chickens do become ill. The virus spreads easily between these birds.

Bird Flu

It is the H5N1 virus that is causing all the problems with humans at the moment. This strain has affected birds for almost half a century, but it mutated back in 1997 in the Far East and spread to humans. As of yet this strain of the virus cannot be transferred from human to human, only from bird to bird or sometime bird to human.