Hello, today I had a concussion when I was standing up from bench and hit my head on a balcony (it was more like a jump from bench than standing up), and tomorrow I'm going to have 5k competition and I still have a mild headache. Is it too dangerous to run after concussion (as long as I will make sure not to hit my head again)? I know I probably shouldnt run, but theoretically, what are the dangers of running after concussion? Can it worsen brain damage or only prolong recovery? Thans for answers.