Wellness apps are built on unreliable inputs. Most promise a clear picture of how we feel, often relying on a mix of self-reporting and surface-level signals like heart rate or sleep quality. Mood ...
Self-tests for COVID-19, also referred to as home or over-the-counter (OTC) tests, are becoming widely available in the U.S. and throughout the world. Self-tests allow people to test frequently and ...
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