How low is too low of a resting heart rate?

A resting heart rate below 60 beats per minute is generally considered low, a condition known as bradycardia. While athletes or highly conditioned individuals may have lower resting rates without issues, a heart rate significantly below this level, especially if accompanied by symptoms like dizziness, fatigue, or fainting, could indicate an underlying health problem. It's essential to consult a healthcare professional if you have concerns about your resting heart rate.