What is a concussion?
A concussion is basically a bruise on your brain. If you hit your head hard enough, (not that I'm saying you should) your brain can move and hit the inside of your skull. Since the brain is very sensitive, it bruises if it even touches the inside of your skull. Luckily, your brain has proective fluid inside your skull to prevent a concussion. yo mama is going to take u 2 the hospital if u get one