A nurse is teaching a group of older adults about the effects of aging on the neurological system. Which of the following statements should the nurse include as correct? (Select all that apply.).

Choice A rationale: Slower reaction time is a common age-related change in the neurological system. The processing of sensory information and response time may become slower in older adults due to changes in neural pathways and decreased neurotransmitter activity. Choice B rationale: Older adults may experience some difficulty with learning new things due to changes in cognitive function and neural plasticity. This is a common age-related effect on the neurological system. Choice C rationale: This statement is incorrect. Older adults typically have fewer neurotransmitters in their brains as they age, which can contribute to cognitive changes and a decline in cognitive function. Choice D rationale: Loss of some sense of smell and taste is an age-related change. Older adults may experience a decreased ability to detect and differentiate smells and tastes due to changes in olfactory and gustatory receptors. Choice E rationale: This statement is incorrect. Aging does not necessarily lead to an increase in oxygen delivery to brain cells. In fact, there may be a decrease in cerebral blood flow with age in some individuals.