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Unusual COVID-19 symptoms: What are they?
Find out about the unusual symptoms of coronavirus disease 2019 (COVID-19), including COVID toes, nausea, and loss of smell or taste.
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Isometric exercises: Good for strength training?
Learn more about isometric exercises that contract a particular muscle or group of muscles.
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Warm-mist versus cool-mist humidifier: Which is better for a cold?
Warm-mist and cool-mist humidifiers are equally effective in humidifying the air.
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Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about vitamin D and coronavirus disease 2019 (COVID-19).
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Calcium supplements: A risk factor for heart attack?
Learn about the possible link between calcium supplements and heart attacks.
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