What does the prefix "brady-" mean in medical terminology?

In medical terminology, the prefix "brady-" means slow. It is commonly used in terms related to heart rate, such as bradycardia, which refers to a slower than normal heart rate. A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Bradycardia is typically defined as a heart rate of fewer than 60 beats per minute. It can be a sign of a healthy, well-conditioned heart, but it can also indicate underlying health issues if it causes symptoms such as fatigue, dizziness, or fainting.