[tag=JJ] (□ | □)
[tag=JJ] ([□] | □)
[tag=JJ] ([] | □)
Compared with the control group , those who got memory training did 75 percent better on memory tasks five years later , those who got the reasoning training did 40 percent better on reasoning tasks , and those who got the speed training did 300 percent better than the control group.Researchers noted that mental skills can sometimes compensate for physical disabilities : Knowing how to figure out directions and find a new route on a map , for example , could allow someone to retain mobility even after their night vision deteriorates to the point where driving on certain roads becomes difficult.The study tracked 2,802 healthy adults from diverse backgrounds who were , on average , 73 years old . The increasingly authoritarian rule of President Syngman Rhee , along with government corruption and injustice , added to the discontent of the people . Taplin himself says he is unworried , but a new caution permeates everything he does . Mental skills acquired earlier in life persist well into old age , he said . Curiously , the researchers found no wage differential among left - and right-handed women.They based their conclusions on an analysis of data from the federally funded National Longitudinal Survey of Youth , a nationally representative survey of approximately 5,000 men and women first interviewed in 1979 , when they were 14 to 21 years old . After direct talks with the United States , North Korea agreed to freeze its nuclear program in return for shipments of oil and the construction of two new light-water reactors for power ( the latter were not built , however ) .