The Brain

Your brain works to keep all of these signals in balance. It filters out what is going on in the background so that you are not overwhelmed by all of the information. For example, you don't usually notice the pressure receptors in your skin telling you that they feel your clothes against your body.

2) What can go wrong with it?

There are quite a few diseases that affect the way our brain works and the main ones are strokes, tumours, parkinsons disease and epilepsy.

A stroke is often caused by a blood clot, making part of the brain have a lack of much needed oxygen and this part of the brain dies. Strokes cause loss of brain function and usually the lose of control for half of the body yet in many other cases stroke causes death and disability.

Tumours are when body cells grow at uncontrollably amount, with some of these cells being cancerous in which they can spread to other organs. The treatment for a tumour is drugs and surgery yet sugery is not always a possibilty.

Parkinsons disease is a disease that anyone can develop but the risk increases with old age and it is due to loss of neurones in the area of the brain which controls movement. It causes lack of muscle control, shaking and stiffness but drugs can help control the disease however not cure it.

Lastly, epilepsy. Epilepsy can be caused by many things such as head injury, birth defect or infection and it is where an area of the brain gets excited when it shouldn't causing unconsciousness and unexpected seizures. This can be treated by drugs and sometimes can be helped by surgery.