How does aging affect intelligence?
a) Brains in older people don't work as fast, but knowledge based on experience grows later in life.
b) Older people are really more intelligent because they have been using their brain for so many years.
c) Older people learn significantly less than they did when they were younger.
Experience-based intelligence remains stable or improves slightly well into late adulthood. In many jobs, the expertise of older workers allows them to be among the safest and most productive employees. The speed and efficiency of processing information can decline, however, with increasing age. Recent scientific experiments show that, with practice, older adults can reverse some of these effects.