Why Does Heart Rate Fluctuate? 12 Hidden Causes & 7-Day Control Plan
SehatSphere.com Home › Lifestyle Restoration › Heart Health Heart Health Why Does Heart Rate Fluctuate? 12 Hidden Causes, Smartwatch Errors & a 7-Day Control Plan SAC Written by Dr. Sarwar Alam Chaudhary, BHMS · Registered PharmacistUpdated September 2026 Many people notice their pulse jump from 65 to 110 bpm within an hour on a smartwatch,
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