@lcjohnson Okay, thanks for that. So, empirically (only), your HR seems fine. However, it doesn't let metoprolol, or any other supplement, medicine, or pathology resident in you, off the hook. Maybe your heart would rather be at 73 BPM...maybe...adult females (if this pertains) have higher HR than their male friends and partners. The range for 'normal', again empirically, is 60-99 BPM...if you can believe it. So, there are scads of bodies, male or female, who are happiest with an HR upwards of 70, even 80. If this is true for you, then your rate of 60 is decidedly low. It may just have to be that way, though, for the sake of protecting your heart from beating too strenuously, which apparently is why you have been taking metoprolol on advice.