Iron is found in green leafy vegetables, nuts and legumes. It performs important functions in the body, for example, is involved in the transport of oxygen. Iron deficiency is associated with fatigue, low capacity for work and problems with academic performance, writes Deccan Chronicle.
Scientists from the University of Nebraska-Lincoln and the University of Pennsylvania analyzed data on 105 students with an average score of 368. The study found that participants with the highest levels of iron performance was above all. The difference in average scores between students of high and low levels of iron was 034. This showed that the participants can get different scores.
Fitness effect on performance is stronger than the iron concentration. But the combination of these factors has been the most significant. Thus, participants in good physical shape with high levels of iron have learned much better students with low levels of iron in a bad shape.