Healthy diets
Learning Center
Heatstroke: First aid
How to recognize and provide first-aid treatment for heatstroke.
Bruise: First aid
How to administer first aid for a bruise.
Debunking COVID-19 myths
Some information you come across about COVID-19 may be out of date or false. Learn about COVID-19 myths so you can bust them when you see them.
Herd immunity and COVID-19: What you need to know
Get the facts about coronavirus and herd immunity.
Jaw surgery
Jaw surgery corrects irregularities of the jaw bones and realigns the jaws and teeth to improve the way they work and it often improves appearance.
How well do face masks protect against COVID-19?
Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.
COVID-19: Long-term effects
Learn about the possible long-term effects of COVID-19.
Mitral valve disease
Learn more about diseases that affect the valve between the left heart chambers, including mitral valve regurgitation and mitral valve stenosis.
Wrinkles
These lines in the skin are a natural part of aging that's also affected by sun exposure and smoking. Learn about prevention tips and treatment options.
Swimmer's itch
Learn more about the symptoms, treatment and prevention of this itchy rash that usually affects people swimming in freshwater lakes.
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