Target Heart Rate and Cardio Monitoring for Safe Workouts

Maintaining a healthy resting heart rate is a key indicator of cardiovascular health, especially during high-intensity HIIT or IVF. Learn how to lower your heart rate while running and evaluate the accuracy of calories burned on heart rate monitors.

What Causes a Very Rapid Heart Rate in Infants?

Published Jul,08 2011 | By Mary Earhart

Tachycardia is the medical term for a very rapid heartbeat. Mothers who have special medical conditions, such as thyroid disease or diabetes, may give birth to newborns who are temporarily tachycardic from altered hormone and glucose levels.