Endurance Exercise Can Damage Your Heart

Overtraining Syndrome: This condition occurs when athletes train too intensely or frequently without adequate rest.



It can lead to:   1. Overtraining Syndrome: Symptoms, Causes & Treatment Options – Cleveland Clinic

my.clevelandclinic.org



Fatigue
Decreased performance   1. Overtraining: What It Is, Symptoms, and Recovery – HSS

www.hss.edu


Hormonal imbalances   1. Novel causes and consequences of overtraining syndrome: the EROS-DISRUPTORS study

bmcsportsscimedrehabil.biomedcentral.com


Increased risk of injury   1. Musculoskeletal adaptations and injuries due to overtraining – PubMed

pubmed.ncbi.nlm.nih.gov


Weakened immune system   1. Overtraining, excessive exercise, and altered immunity: is this a T helper-1 versus T helper-2 lymphocyte response? – PubMed

pubmed.ncbi.nlm.nih.gov


Heart problems, including arrhythmias (irregular heartbeats) and enlarged heart.   1. Electrocardiographic abnormalities and diagnostic criteria in athletic overtraining

bjsm.bmj.com


Stress on the Heart: Intense endurance training can put significant stress on the heart. Over time, this can lead to:  
1. Can Intensive Exercise Harm the Heart? | Circulation – American Heart Association Journals

www.ahajournals.org



Thickening of the heart muscle (hypertrophy)   1. Left ventricular hypertrophy – Symptoms and causes – Mayo Clinic

www.mayoclinic.org


Increased risk of atrial fibrillation (a type of irregular heartbeat)   1. Does High-Intensity Endurance Training Increase the Risk of Atrial Fibrillation? | Circulation: Arrhythmia and Electrophysiology – AHA Journals

www.ahajournals.org


Potential for coronary artery disease
Underlying Heart Conditions: People with undiagnosed heart conditions may experience complications during intense endurance exercise. For example, those with coronary artery disease may experience chest pain or a heart attack.  
1. Can Intense Exercise Put Your Heart at Risk? – University Hospitals

www.uhhospitals.org



It’s important to note that these risks are relatively rare and often associated with extreme or poorly managed training. For most people, moderate endurance exercise is beneficial for heart health. However, it’s crucial to listen to your body, avoid overtraining, and consult with a healthcare professional before starting a new exercise regimen, especially if you have any underlying health conditions.