Being young is great fun, climbing trees, running around and generally moving the way we should. Then something happens. All those years of sitting at school catch up on us. When we hit university or begin a 9-5 job it gets even worse. We are glued to a seat for so many hours per day and the systems that govern our body's posture begin to adapt, negatively. When muscles become over-stretched, over-worked or 'facilitated' (too much stimulation via our nervous system), our brain can sometimes to respond with soreness, achiness, pain, nerve irritation and so on.
I currently treat many students and here's one thing I have noticed. I see more issues with PhD's and students who have been in education for longer. I also see more students who study a heavily theoretical subject than I do those who move more and sit less. However it's not all negative as there are plenty of strategies available to try or 'cluster' together in order to increase the effectiveness.
1. join a sports club or gym
2.have a pro analyise your posture
Once the structural reason behind why you are experiencing soreness or poor posture is fully understood, it becomes simpler to fix.
3. sit less and move more
4. take walking study breaks
5. do regular yoga