Heart problems often begin quietly, especially for seniors over 50, making early detection essential for prevention. Shortness of breath, even during light activity, may indicate reduced oxygen flow from a weakened heart. Chest tightness or pressure isn’t always sharp pain, it can feel like heaviness or squeezing. Unexplained fatigue and low energy are common early warning signs of poor heart function. Swollen ankles or feet may reflect fluid buildup from weak circulation. An irregular heartbeat