Heart disease, usually thought of as blockages in the arteries that can cause a heart attack, can describe any medical condition affecting your heart.
Hyperthyroidism occurs when your thyroid gland produces too much of the hormone thyroxine — speeding up your metabolism and sometimes leading to serious complications.
Iron deficiency anemia may leave you feeling sapped of energy. This condition is especially common in women. Iron supplements usually help.
Pituitary tumors are abnormal growths in the pituitary gland in the brain. Most are noncancerous (benign). Some may cause overproduction of hormones and associated problems.
You normally lose about 10 cups (2.4 liters) of water every day — much more during exercise or illness. Learn how to stay hydrated.
Pericardial effusion, the accumulation of excess fluid in the sac-like structure around the heart, can decrease heart function and can be life-threatening.
Find out about this rare cause of heart attack in young, healthy people.
Drinking alcohol might offer some health benefits. But that's only if you drink responsibly and in moderation.
Finding time for fitness can be tough. Start by making it convenient.
Discover why saying no may be the single most important strategy you can use for stress relief.
Healthier recipes may be as close as your own pantry. See which ingredient substitutions you can make to improve your diet.
Heart palpitations are skipped, fluttering or racing heartbeats that aren't usually a symptom of a serious heart problem. Discover the causes and symptoms of this condition.
Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.
Vasovagal syncope (fainting) is a sudden and brief loss of consciousness that occurs when the blood flow to your brain is markedly reduced.
Tests and diagnosis
Treatments and drugs
A pacemaker can correct a heartbeat that's too slow. Find out the risks, results and recovery time of the procedure to implant a pacemaker.
May 06, 2014
- Ganz LI. Sinus tachycardia. http://www.uptodate.com/home. Accessed Dec. 27, 2013.
- Longo DL, et al. Harrison's Online. 18th ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://accessmedicine.mhmedical.com/content.aspx?bookid=331§ionid=40727006. Accessed Dec. 27, 2013.
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- What is an arrhythmia? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/arr/. Accessed Dec. 27, 2013.
- Overview of arrhythmias. The Merck Manuals: The Merck Manual for Health Care Professionals. http://www.merckmanuals.com/professional/cardiovascular_disorders/arrhythmias_and_conduction_disorders/overview_of_arrhythmias.html?qt=arrhythmia&alt=sh. Accessed Jan. 6, 2014.
- What is catheter ablation? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/ablation/. Accessed Jan. 7, 2014.
- Prevention & treatment of arrhythmia. American Heart Association. http://www.heart.org/HEARTORG/Conditions/Arrhythmia/PreventionTreatmentofArrhythmia/Prevention-Treatment-of-Arrhythmia_UCM_002026_Article.jsp. Accessed Jan. 8, 2014.
- Riggin EA. Decision Support System. Mayo Clinic, Rochester, Minn. Dec. 5, 2013.