MediHealth
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Immune system
Updated: Nov 17, 2009 - 13:20Your immune system is your body’s natural defence army, and protects you from illness and infection. It is made up of white blood cells, which travel in your bloodstream. Your immune system works by recognising any cells that aren't human, like germs, viruses and bacteria, and destroying them. ...
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Immunity
Updated: Jan 25, 2010 - 16:04If you have immunity to an infection it means that your body can fight the disease off – it’s immune to it. Usually this means your immune system has already seen the germ that causes that specific disease. Your body starts to make the right army to fight that disease so that it knows how to figh...
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Immunoglobulin A
Updated: Nov 17, 2009 - 13:20Immunoglobulin A is a protein in your blood. It forms part of your immune system. ...
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Infection
Updated: Nov 17, 2009 - 13:21An infection is what you get when germs, like viruses and bacteria, get into your body and take over. They have infected you! You feel unwell, and the symptoms of your infection depend on where it is. For example, if the germs have attacked your throat, your throat may feel very sore. ...
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Inflammation
Updated: Nov 17, 2009 - 13:21Inflammation is a reaction by your body to things like infection or injury. The area that has been affected goes red and angry and can be painful. ...
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Inhaler
Updated: Nov 17, 2009 - 13:21An inhaler is a device that contains and delivers the medicine that you might need if you have asthma or suffer from allergic reactions, like a food allergy. Sometimes, people call inhalers 'puffers'. The medicine comes as a spray, and you breathe it out of the inhaler and into your mouth. ...
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Injection
Updated: Nov 17, 2009 - 13:21An injection is when something, like medicine, is put into your body through a needle. There are different ways in which this can be done. For example, some injections are given through a vein (intravenous), some are given just under your skin (subcutaneous) and some are given into muscles (intra...
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Insulin
Updated: Nov 17, 2009 - 13:21Insulin is a hormone that controls the amount of glucose in your blood. It's made by your pancreas shortly after you eat. Insulin opens a cap on your body's cells to let glucose in, just like a petrol station attendant! It also tells your liver to store glucose, so that there is enough fuel t...
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Insulin resistance
Updated: Dec 15, 2009 - 17:01Insulin resistance means that insulin doesn’t have the same effect on your cells as it used to. This means that you need more insulin for it to be able to work properly. Your body needs insulin to use glucose for energy. If you stop responding to insulin very well, your pancreas will start to m...
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Interpersonal therapy
Updated: Dec 18, 2009 - 12:25Inter means 'between' and personal, in this case, means people. So, interpersonal therapy means treatment between people. Interpersonal therapy helps you understand and improve troubled personal relationships, for example with your friends or family. It is often used in the treatment of depressio...
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