Waking up exhausted even after 7–8 hours of sleep? A cardiology expert explains how a very low heart rate at night, known as bradycardia, could be affecting your energy levels.
Bradycardia, a resting heart rate below 60 bpm, may seem harmless but can signal a serious rhythm disorder. Often mistaken for fatigue or ageing, symptoms include dizziness, weakness, fainting, and ...