New Delhi, July 21 A brain tumour develops when certain genes in a cell's chromosomes become faulty and cease to function properly. These genes typically regulate the rate at which the cell divides and repair genes that correct deficiencies in other genes, as well as genes that should cause the cell to self-destruct if the damage is irreparable.
A person may be born with a partial defect in one or more of these genes. Environmental factors may then cause additional mutilation. In a few other cases, however, environmental damage to the genes can be viewed as the sole factor.
Behavioural changes that brain tumours cause
Brain tumours and their treatments, in general, can alter a person's behaviour and ability to think. Patients' communication, concentration, and memory skills may suffer, and their personalities may shift. Brain tumours frequently cause personality changes and mood swings. Although the severity of these mood changes varies from person to person, it is relatively common for someone with a brain tumour to experience increased aggression and agitation.
A brain tumour may also cause weakness, dizzy spells, poor balance or lack of coordination, personality or behaviour changes, confusion, speech problems, and fits
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