Blue is often linked to tranquility and serenity, and many people who favor this color naturally seek out calm environments.

Mean resting heart rate (top) and mean daily steps relative to the average of individuals with Covid-19 infection but without persistent symptoms (bottom) before, during, and after a ...

Thanks to the proliferation of smartwatches and fitness trackers, it’s never been easier to log your heart rate while running: Simply don the device, start your workout, and watch those beats ...

represented by the blue balloons, now travels back to the heart and the whole cycle begins again.' PRESENTER:Well done, all of you! Now let's see how your heart rate has been affected by the exercise.