Compared to those untrained, these participants were able to do such skills as cooking, managing finances and using their medications. Reliable improvements had been noted at 87% in speed training and at 74% in reasoning training. These improvements in mental acuity had been detected for about two years or more by the authorities. The ability to improve fluid intelligence has been termed by Dr.Jaeggi as the ability to reason and to flexibly adapt to new situations. The game Dr. Jaeggi and colleagues gave 35 volunteers a series of training exercises designed to improve memory and 35 more to a control group. Participants saw a sequence of squares appearing one after the other on the computer every 3 seconds. If computers and hand-held games is not your cup of tea, then you could start answering puzzle books and pamphlets like sudoku and crossword puzzles. Reading. This simple practice stimulates brain activity. If you are into fictional books, try reading some creative non-fiction articles. Drawing. Another simple practice which would help in developing your right part of the brain association with visualization. In contrast with their untrained counterparts, those who received brain training (memory, speed of processing and reasoning) were reported to have fewer difficulties in doing everyday tasks such as cooking, managing their finances, and following their medication instructions to name a few. Learning-disabled On the other hand, medical authorities are now looking into the big possibility that another set of senior citizens today have learning disabilities. Some games that are favored by the older adults are those of remembering faces and names and other images. Spatial intelligence The Rubik s Cube is one very challenging game that will not only stimulate your sense of space (what goes where) and foresight (what to move first), it will also force your sense of logic (why should I move this side first? In Jean Piaget s theory on children s cognitive development, there are four stages of cognitive growth among children: the sensorimotor stage (during infancy), pre-operational stage (toddler and early childhood), concrete operational stage (elementary and early adolescence_ and formal operational stage (adolescence until adulthood).