Legendary singer-composer Bappi Lahiri died on February 15 in Mumbai. The 69-year-old disco king of Bollywood was suffering from Obstructive Sleep Apnea (OSA). OSA is a sleeping-related breathing disorder. Symptoms include snoring, tiredness, sore throat and more. Risk factors include being overweight, and nasal congestion, reported The Indian Express. Watch the video to know more about Obstructive Sleep Apnea (OSA). Watch the video to know more.