We all know that our brain contains nerve cells which are very delicate and contain spinal fluid. This cerebral spinal fluid which contains nerve cells acts as a protector. It protects the brain from shock. This fluid contains all activities. When a person meets with an accident this cerebral fluid absorbs shock. When fluid absorbs shock our brain becomes totally blank and results in a situation of total blackout which leads to unconsciousness.
When a person regained its consciousness they mostly became dazed and confused. This thing happens temporarily and is known as ‘concussion’. But if a person is hit more violently the muscular flap which is known as ‘Dura’ starts becoming swelled and they also start bleeding internally. This also causes a person to become unconscious. This is known as ‘in succession’. The symptoms of in succession are a headache, dizziness etc/