Final answer:
Bradycardia is a slow heart rate below 60 bpm, while tachycardia is a rapid heart rate above 100 bpm, both being types of arrhythmias.
Explanation:
Bradycardia is the condition in which the resting heart rate drops below 60 beats per minute (bpm), often resulting in symptoms such as weakness and fatigue. In contrast, tachycardia occurs when the resting heart rate is above 100 bpm, leading to signs like rapid pulse and chest pain.
Both bradycardia and tachycardia are types of arrhythmias, which indicate abnormal heart rhythms that can pose risks or lead to serious complications if not addressed promptly.
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