the mechanism of dementia is gradually progressing. The sufferers will find difficult to live with others due to the memory
deficit, losing their ability to make decisions, personality problems and inability to carry out their daily routine activities.
Eventually, the sufferers become totally dependents of their family and carers. Because of the behavioral problems and the
physical impairments of the elderly with dementia, they become a burden to the caregivers and as a result the caregivers
often feel depressive [