Lucknow, Sept. 24 -- Breathlessness, unusual fatigue, chest discomfort, palpitations, dizziness and reduced exercise tolerance may be early warning signs of heart disease and should not be dismissed as stress, ageing or lack of fitness, cardiologists at Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS) said on Thursday.

The department of cardiology launched a week-long campaign ahead of World Heart Day on September 29, with more than 100 people participating in a walkathon as part of the global "Don't Miss a Beat" campaign. The initiative seeks to promote early recognition of symptoms, timely medical evaluation and healthier lifestyles, including at least 20 minutes of physical activity every day.

SGPGIMS director Radha...