So just how much exercise should you be getting a week?

FOX's Alex Hein reports:

This is Housecall for Health.

Couch potatoes, rejoice! Extreme exercise may be toxic for your heart, according to a review of studies set to appear in the Canadian Journal of Cardiology.

Apparently pushing your body to the max day after day can stress your heart and raise your risk for a type of abnormal heart rhythm called atrial fibrillation, or a-fib, which can ultimately lead to heart failure or a stroke.

But the researchers cautioned not exercising at all is far worse for your heart than overdoing it and as always that moderation is key.

Moderate-intensity exercise includes movement that raises your heartbeat such as casual sports, walking briskly, jogging, biking, or swimming.

The Centers for Disease Control and Prevention recommends that adults get at least 150 minutes of moderate exercise per week to help ward off unhealthy weight gain and heart disease.

The review analyzed 12 studies on a-fib and athletes and endurance runners.

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Housecall for Health, I'm Alex Hein, FOX News.