New Delhi, Sept. 15 -- With marathons, CrossFit, and endurance challenges like Hyrox gaining popularity across India, more people are pushing their bodies to new limits in pursuit of fitness. While regular exercise is, without doubt, excellent for long-term health, experts caution that before transitioning from recreational activity to high-intensity training, it is crucial to ensure that your heart is ready for the challenge.

The physically demanding nature of these events makes them significantly stressful for the cardiovascular system. Although the vast majority of athletes are healthy, a small proportion may unknowingly have underlying heart conditions that can become life-threatening during strenuous activity. These conditions may b...