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A normal resting heart rate for adults ranges from 60 to 100 beats per minute, according to Mayo Clinic. Factors such as age, fitness, medications and emotions can affect your heart rate.
Bradycardia is a slow heart rate that can cause dizziness, fatigue and shortness of breath. It can be caused by heart damage, medications, thyroid problems or other factors. Learn more about the diagnosis and treatment of bradycardia.
Tachycardia is a fast heart rate over 100 beats a minute caused by irregular heart rhythms. Sinus tachycardia is a normal increase in heart rate due to exercise or stress. Learn about other types, symptoms and treatments of tachycardia.
Bradycardia is a slow heart rate that can cause fainting, shortness of breath or chest pain. Learn about the symptoms, causes, tests and treatments for bradycardia, including pacemakers.
Learn about the different types of prescription sleeping pills, their benefits and side effects, and how to use them safely. Find out when to see a health care provider and what other treatments may help with insomnia.
Learn about the types, causes and treatments of heart arrhythmia, an irregular heartbeat that can be harmless or life-threatening. Find out how to prevent heart damage that can trigger some arrhythmias and when to seek medical care.
Temazepam is a benzodiazepine used to treat insomnia for short-term use only. It can cause side effects such as drowsiness, amnesia, confusion, and dependence. Learn more about the precautions and warnings of this medicine.
Melatonin is a hormone that regulates sleep and wake cycles. It may help with some sleep disorders, but it can also cause headache, dizziness, nausea, daytime drowsiness and other side effects. Learn more about melatonin supplements and how to use them safely.
Learn about the common sleep aids available without a prescription, such as diphenhydramine, doxylamine, melatonin and valerian. Find out the potential side effects, interactions and risks of these medications, and when to see your health care provider for insomnia.
Tachycardia is a fast heartbeat that can be caused by various factors, such as stress, exercise, medications or heart problems. Learn how to diagnose and treat tachycardia with tests, medications, devices and procedures from Mayo Clinic experts.