This research was also able to identify a number of things that patience is not; specifically, patience is not just the opposite of impatience, delay of gratification, or self-regulation of emotion. The evidence for the effects of patience, though limited, seems to reflect both positive and negative outcomes.
Using the same method, in 1999â2004, myopia prevalence was estimated to have climbed to 41.6%. A study of 2,523 children in grades 1 to 8 (age, 5â17 years) found nearly one in 10 (9.2%) have at least â 0.75 diopters of myopia.
Myopia affects nearly 30 percent of the U.S. population. While the exact cause of myopia is unknown, there is significant evidence that many people inherit myopia, or at least the tendency to develop myopia. If one or both parents are nearsighted, there is an increased chance their children will be nearsighted.