What Causes a Cold Sore? Factors can include injury or stress.
Taking Care of Someone With Flu. Suggestions to keep yourself well.
Pay Attention to Air Pollution. Avoid outdoors when air quality is poor.
Need a Lung Function Test? Here's what it may reveal.
Do You Have Enlarged Adenoids? Here are classic warning signs.
Severe Infections Double Risk of Heart Failure
Americans Still Consider COVID Major Public Health Threat
COVID-19 Remains Major Health Threat in U.S.
CIA Now Backs Lab Leak Theory for COVID-19, But Confidence Remains Low
How To Fight Common Wintertime Respiratory Viruses
COVID Vaccine Hesitancy Reducing Childhood Vaccinations
