We do not have any concrete proof to tell you that swimming does help but Queensland researcher will soon have the answer.
Queensland researchers are leading a world first international study looking at whether swimming makes children smarter. More than 10,000 children aged up to five-years-old will be surveyed annually as part of the four-year study.
When I was young, I used to swim a lot and each time I swim, I feel refresh. Then I realized many solutions to problems were found during my swim. I could relax my mind hence think better, study better as well!
Stop thinking start swimming, my friend!