General search term.
Might be referring to: a normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats per minute..
This is a seasonal trend that repeats every December.
This trend is forecasted to be growing in the next 2 years.