can you imagine life without sleep ? after having breakfast in the morning, going for job working so hard, job stress, boss pressure, traffic headache and many more. sleep is a state of rest - an unconscious rest. when we sleep, our body recovrs from fatigue caused by the day's acitivities. after a good sleep and rest theat it fives , we become alert and active again, ready for the normal activites of the day. when we wake up in the morning, it is not always possible for us to remember what happened when we were asleep. we may remember a dream but the rest of our sleep was a kind of darkness in which nothing seems to have taken place. several thing happen to our body while we are sleepng. as we sink deeper into sleep, our muscles relax more and more. our heartbeat becomes slower. our temerature and bleed pressure go down. the ever-avtice brain alswo slows down so tha we can't thing or act consciously. but we drea. when e wake up, our temperatre and bleed pressure rise to nor