I'm about to enter graduate school under an advisor who studies stress, and in a study we piloted this year we asked about peoples' exercise habits, etc., along with other school-related info, like GPA, to get an idea of their lives and things that could possibly interact with their cortisol levels.
Now I'll be on the lookout to get my hands on that exercise/ stress / GPA data :)
current weight: 239.2
Fitness Minutes: (2,312) Posts: 20 6/3/14 12:06 P
I think that's really cool! Those are all really good factors for the correlation...another one could be that physical activity improves circulation, and better bloodflow=more oxygen to the brain, allowing it to operate better.
It could have something to do with the mitochondria, too. (I learned about this in biology!) You know when we exercise, our cardiorespiratory system improves because the heart is a muscle, and like any other muscle, it gets stronger when we push it. But our individual cells' operations also improve at respirating, because they are making more mitochondria. I don't remember it that well, but I'll look into it. Let me know if you want to hear more about it!
Anyway, this increased cell activity could also improve brain activity. It seems to be more of a biological process than a psychological.
I'd love to see your research. Sounds fascinating. :)
So, I thought this was interesting for many reasons. I'm a psych major, and we had a group project assigned in an experimental design/analysis course. We chose to study the connection between sleep quality and GPA based on a previous study involving the Pittsburgh Sleep Quality Inventory, and a survey we created on our own.
Unfortunately, our results between sleep and GPA weren't as significant as the other studies, which could have been because of the sample size (we surveyed 31 people, the PSQI initially used a lot more), or other factors, but there is one thing that jumped out at me in the results:
One of the strongest correlations? Was between REGULAR RIGOROUS EXERCISE (defined as participating in a team or intramural sports and activities or maintaining a regular gym schedule, which meant more than 120 minutes per week), and GPA. More activity meant a higher GPA.
I know there are a lot of factors that could come into play here, such as participants in team sports being required to maintain a higher GPA, the decrease in stress levels that come with physical activity, working out so hard that you sleep better. This is something I'm very interested in researching further in the future, especially in my own personal endeavors.
I wanted to get some outside feedback on this. What do you all think?
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