A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can ...
Cardiologist Dr. Puneet Verma shared a simple 3-minute "step test" to assess cardiovascular fitness. Participants step up and ...
In TODAY.com's Expert Tip of the Day, a cardiologist explains why a lower resting heart rate can be a good sign of heart health and how to improve this vital sign. Resting heart rate — the number of ...
In the animal kingdom, the creatures with the biggest hearts – relative to their size – are often the tiniest among us.
Tachycardia is the medical term for a heart rate over 100 beats per minute (BPM). It can be a sign of emotional distress or anxiety, anemia (low levels of iron in the blood), infections, dehydration, ...