hyperthyroidism means your thyroid makes too much thyroid hormone. your thyroid is a gland in the front of your neck. it controls your metabolism which is how your body turns food into energy. it also affects your heart muscles bones and cholesterol. having too much thyroid hormone can make a lot of things in your body speed up. you may lose weight quickly have a fast heartbeat sweat a lot or feel nervous and moody. or you may have no symptoms at all. while your doctor is doing a test for another reason he or she may discover that you have hyperthyroidism. hyperthyroidism is easily treated. with treatment you can lead a healthy life. without treatment hyperthyroidism can lead to serious heart problems bone problems and a dangerous condition called thyroid storm. webmd medical reference from healthwise this information is not intended to replace the advice of a doctor. healthwise disclaims any liability for the decisions you make based on this information. © 1995-2011 healthwise incorporated. healthwise healthwise for every health decision and the healthwise logo are trademarks of healthwise incorporated.
what is hyperthyroidism?