<ul><li>Composite health scores provided by fitness trackers are increasingly used to offer a simplified measure of how the body is coping with recent demands.</li><li>The science behind these scores may be less solid than it appears due to factors such as sensor accuracy and lack of transparency in how the raw data is converted into a final score.</li><li>Some health scores may penalize users for similar physiological signals twice, exaggerating the impact of a particular stressor.</li><li>While fitness trackers can provide valuable insights, it is important not to treat the daily score as a definitive measure of health and to use them as a guide rather than relying on them completely.</li></ul>

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