Answer: Mostly False - Most older adults do not experience any decline in intellectual abilities with age. In fact, some forms of intelligence have been hypothesized to increase with age. However, some older adults do exhibit decline. There are several factors which may account for this decline. First, some diseases may lead to intellectual declines (e.g. cardiovascular diseases). Thus, the intellectual decline is the result of disease not age. Second, individuals who live in deprived environments demonstrate a loss of intellectual abilities (e.g. poverty, lack of intellectual stimulation). Of course, problems such as impoverished environments impact the intellectual performance of children as well. Third, if you don't use it, you lose it. Exercise any intellectual ability that you would like to keep!