New Delhi, Nov. 4 -- With the continued deterioration of the air quality in the Capital, hospitals are reportedly seeing a sharp rise in respiratory and cardiac complaints across all age groups. Doctors from across leading hospitals have cautioned residents against early morning and late evening walks when pollution levels peak, and have urged people to take preventive measures such as wearing masks, using air purifiers, and consuming antioxidant-rich food items. "Whoever is coming to the OPD (out patient department) now says that ever since the AQI levels have gone up, their cough, breathlessness, chest tightness, and nasal congestion have all significantly worsened. The common symptoms include cough, cold, sore throat, burning eyes, heavy...