COGNITIVE ASPECTS OF AGEING
Cognitive abilities are the mental skills that we need to carry out any task from the most simple to the most complex. These mental skills include awareness, information handling, memory and reasoning. As we get older, our cognitive abilities gradually deteriorate. A certain amount of cognitive decline is a normal part of ageing. Some people, however, will experience a severe deterioration in cognitive skills, leading to dementia. This can make it impossible to cope with ordinary day-to-day tasks. The normal cognitive decline associated with aging are: PERCEPTION It is the ability to interpret the environment. If the aging person's senses are impaired, the ability to perceive the environment and react appropriately is diminished. The brain loses mass with aging. Blood flow to the brain decreases the meninges thicken and brain metabolism slows. Changes in the nervous system may also affect perceptual capacity. Cognitive ability Overa...