Samsung has detailed all the ways its latest Galaxy Watch8 series' health sensor and software enable preventive health care, by using insights from the smartwatches to help you build healthy habits.The Galaxy Watch8 series has enhanced ECG technology that can detect ectopic beats - premature heartbeats that often go unnoticed but can lead to arrhythmias, and even stroke or heart failure, if left untreated.Then there are the vascular load monitoring during sleep and an antioxidant index - both new on the Watch8 series.The vascular load monitoring uses PPG waveform to judge...