When you are out in a cold environment, you start feeling shivers after some time. You may also feel the same after taking certain medicines and treatments. However, the reason behind your feeling of these shivers is your nervous system and reflexes. Basically, it is your nervous system that keeps you safe and maintains your health by controlling your reflexes. Your nervous system includes your brain, spinal cord and nerves. These nerves carry all kinds of information to your brain so it can decide to take the right action.
