Sleep is important for proper physical and mental functioning. This can well be called the fifth vital sign. You can gauge the well-being of a person by the pattern of his sleep. Not many people are aware that there could be sleep disorders that disrupt not only normal functioning of daily routine but also healthy heart and weight balance in the body. Be with us this Wednesday, February 16, on Dr KK's Medtalks at 7:00 PM to discuss this fifth vital sign, with special focus on Obstructive Sleep Apnea with eminent Pulmonary and Sleep Medicine Specialist, Dr Deepak Rosha, Senior Consultant, Apollo Hospital, Delhi.