Don’t get me wrong, wrist-based heart rate tracking on smartwatches has improved loads over the years, but if you do anything ...

You track your VO2 max and working heart rate, but this underrated biometric may tell you more about your heart and long-term ...

Yes, allergies can increase your heart rate. This may occur as a symptom of allergic rhinitis or as a side effect of an allergy medication. Learn more about prevention and treatment options. Your ...

Consistently high heart rate may signal dehydration or poor recovery. Resting heart rate indicates fitness; healthy ranges are 60–100 bpm, 40–50 for athletes. Consistently high or very low heart rates ...

A US federal appeals court has handed Apple a significant victory in its long-running legal dispute with AliveCor. Here are all the details.

Sitting quietly at your desk, watching TV, or lying in bed at night, your heart should be taking it easy – beating steadily and calmly at somewhere between 60 and 80 beats per minute for most healthy ...

That little number on your fitness tracker might be more important than you realize. Your resting heart rate isn’t just some random vital sign. It’s essentially a window into how efficiently your ...

To get a heart rate reading, the UltraTread pairs with the Apple Watch (the only fitness tracker it's currently compatible ...

Dr. Richard Page answers the question: 'What Causes Defibrillator To Fire?' — -- Question: What kind of heart rhythm problems will cause my defibrillator to fire? Answer: Your defibrillator is ...

SVT results in the heart beating at much faster rate than normal, and can be triggered by exercise, lack of sleep, ...

New research suggests that older adults experience lower stress levels when their bedroom is kept at 24°C (75 °F) during sleep. Maintaining a bedroom temperature around 24°C (75.2°F) or lower during ...