Heart rates vary from person to person, influenced by a variety of variables. But how do you know if your heart rate is in the dangerous category?
|
 |
|
‘Normal’ vs. ‘Dangerous’ Heart Rate |
Heart rates vary from person to person, influenced by a variety of variables. But how do you know if your heart rate is in the dangerous category? |
|
|
|
|
|
|
|
|
|
|
|