Brain tumours affect people of any age, including children - being able to recognise the symptoms of a brain tumour early could save your life or the life of a loved one.
So what do we know about brain tumours?
According to the NHS there are about 4,300 people diagnosed with benign brain tumours and 5,000 new cases of malignant (cancerous) brain tumours in the UK each year.
Being able to recognise the signs of a brain tumour early is key to successful treatment.
Brain tumours are graded from one to four according to their behaviour, such as how fast they grow and how likely they are to spread. Grade one tumours are the least aggressive and grade four are the most harmful and cancerous.
Even benign brain tumours can be serious if they are not diagnosed and treated early.
Although they remain in one place and do not usually spread, benign tumours can cause harm by pressing on and damaging nearby areas of the brain.
A grade four tumour (a primary malignant brain tumour) needs to be treated as soon as possible because it can spread and damage other parts of the brain and spinal cord.
The tumour is usually operated on and as much of it as possible is removed before the patient recieves radiotherapy, chemotherapy or a combination of both.
According to Cancer Research UK there were 4,975 deaths from brain, other central nervous system and intracranial tumours in the UK in 2011. Education on brain tumours could help to reduce this number.
With this in mind, here are the brain tumour symptoms to look out for: