I am a graduate student who is currently doing a lot of research works. I understand that academia is a stressful place and it is normal to feel unmotivated and depressed. Recently, I have incorporate a 25 minutes uphill jogging into my daily schedule (an advice from a recent PHD graduate). Although, this reduce the amount of work I can do everyday but all of my stress, sadness and insomnia disappear magically.
I do not understand why such simple exercise could elevate my mood so much despite the fact that I still cannot solve my research problem. Is there really any reasonable explanation for this phenomenon ?
Thank you very much !