Link between physical exercise and memory

The question to be explored is a link between exercising and memory. Hypothesis would be that students who get enough physical activity during the day would be able to perform better on memorizing tasks. Independent variable would be amount of exercise because it would be manipulated; memory would be dependent variable. Experimental design would be suitable for this research. Different research methods could be applied to this study. Surveys could be used for measuring students’ attitude towards their own progress or absence of such. Case study might be useful for research purposes as well by monitoring a selected individual while adding exercise to his or her daily routine and measuring memorizing ability during this process. If positive correlation would be found between increased physical activity and memory, it could be recommended for the students to include some extra exercises in their daily routine in order to boost their memory. Among the possible problems of this research could be other than physical activity variables such as amount of sleep, diet changes etc. that could have significant effect on memory. If such factors change during the conducting of the experiment and in case if they are not accounted for the results of the experiment might not be accurate. Also, if the research method used would be survey, there is a possibility of biased self-reports that  also could alter the results of a study.