Your target running heart rate may vary depending on your age and fitness level. Other factors like heat, humidity, and stress levels can also affect your heart rate. Your heart rate, or pulse, is ...

Average heart rates vary widely. During stress, the body releases hormones that trigger a “fight or flight” response. A person’s heart rate may increase and exceed 100 beats per minute (bpm).

Apple today shared additional videos in its ongoing Apple Watch tutorial series, highlighting health-related Apple Watch features that include fall detection and heart health notifications. The two ...

Obesity may raise the risk of an elevated resting heart rate, which is associated with many cardiovascular health problems. But other factors can also play a role, such as heat, stress, or certain ...