Cardiologist warns against overdoing gym workouts and heavy exercise without rest

How far you can push your body during a workout is a major test of strength and stamina, but a top heart doctor warns that too much exercise without proper recovery can harm your heart health.

Expert Warning

Dr Manish Aggarwal, director of interventional cardiology and structural heart at Yashoda Medicity, says that problems start when people increase workout intensity too fast or skip rest days. Activities like marathon training, high-intensity interval training, long-distance cycling, boot camps, and heavy gym workouts can put unexpected stress on the heart. Regular exercise helps lower the risk of heart disease, but vigorous training can raise heart disease risks for people who have never trained before.

Recommended Limits

For most adults, a safe weekly goal is at least 150 minutes of moderate aerobic activity or 75 minutes of vigorous activity, plus muscle-strengthening exercises on two or more days. People who are already active can increase their workout volume slowly, matching the intensity to their age, fitness level, existing health conditions, and ability to recover. Experts also remind people to focus on proper hydration, good nutrition, enough sleep, and regular rest days.

Medical Risks

Some endurance athletes who train vigorously for years have been found to suffer from atrial fibrillation or increased calcium deposits in their coronary arteries, though experts note this does not prove a direct cause. People dealing with cardiovascular diseases, hypertension, diabetes, past heart issues, or a family history of sudden heart attacks must consult a doctor before starting a heavy exercise program. Anyone experiencing unusual weakness or discomfort during a workout should not ignore it as simply being out of shape.

Context

Doctors frequently advise that physical activity must be balanced with adequate rest to let the heart, muscles, and joints adapt to new demands. Medical guidelines suggest checking with a healthcare provider before making major changes to an exercise routine, particularly for individuals with pre-existing health conditions.