Obstructive Sleep Apnea (OSA), often mistaken for loud snoring, is a serious and underdiagnosed sleep disorder in India. Characterized by repeated upper airway blockages during sleep, OSA leads to breathing pauses and reduced oxygen levels. Factors like excess weight, narrow airways, and alcohol consumption contribute to its development. Untreated, OSA can silently damage the heart, brain, and metabolism, potentially leading to sudden death during sleep.