Brains of older people areslow beause they know so much. People do not decline mentally with age. It just takes them longer to recall facts because they have nre inforation in their brains, scientists believe.
Much like a computer struggles as the hard drive gets full, so, too, do humans taker longer to access information when their brains are full.
Researchers say this slowing down process is nothe same as conitie decline. The human brainworks slower in old age, said Dr.Michaels Ramscas, but only because we have stored more information overtime. The ains of older people do not get weak. On the contrary, they simply know a lot more.