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Jogging With Untreated Hyperthyroidism

By Brian Connolly

Hyperthyroidism is a serious health condition that can drastically reduce your ability to perform aerobic exercise. Due to the drastic increase of thyroxine hormones in your bloodstream, your heart rate can develop an accelerated or irregular rhythm that may result in harm to your heart and cardiovascular system. For best results, seek immediate medical attention and avoid jogging until you have received your doctor’s approval.


Hyperthyroidism can have a substantial impact on your ability to perform physical activities. In addition to rapid and irregular heartbeat, hyperthyroidism may cause sudden weight loss, sweating, nervousness, irritability, irregular menses, tremors and sweating. A particular type of rapid heartbeat, called tachycardia, occurs when your heart regularly pulses at a rate more than 100 beats per minute. Considering the cardiovascular demands of jogging, most patients are required to avoid it for the duration of their treatment.

Jogging and Exercise

Regardless of your level of health and physical fitness, jogging with untreated hyperthyroidism is dangerous. Although patients who are very young and fit may have less risk of peaking their maximum heart rate while jogging, other dangerous heart conditions may also occur. According to MedlinePlus, patients with uncontrolled hyperthyroidism are at risk of experiencing arrhythmia, or abnormal heart beat. Cardiac dilation, or swelling of the size of the heart cavities, may also pose dangers to joggers who may experience cardiac arrest or hypertension during periods of exertion, such as jogging.

Getting Started

With your resting heart beat already at 100 beats per minute, you may have to stick to walking and other less-demanding activities. Begin by walking at a casual pace for 15 to 30 minutes a day without stopping. Bring a friend or family member along in case you have to stop and rest due to sensations of exhaustion or rapid heart rate. If you are confident in your ability to perform more strenuous exercise, ask your doctor about the safety of adding jogging intervals during your walking sessions. For instance: instead of walking 30 minutes, try walking five minutes and jogging one minute, then repeating. Always monitor your heart rate, and avoid any activities that approach the beats-per-minute of your maximum heart rate – or the number of your age subtracted by 220 for men, or 206 minus 88 percent your age for women.

Safety Concerns

Left untreated, hyperthyroidism can develop into a variety of serious complications and conditions including brittle bones, eye problems, atrial fibrillation, dermopathy and thyrotoxic crises. If you have been diagnosed with hyperthyroidism, avoid delaying treatment and seek immediate medical attention for your condition. Never engage in jogging or other strenuous aerobic activities without first consulting with your doctor.

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