Aerobic exercise
Learning Center
COVID-19 vs. flu: Similarities and differences
Find out the similarities and differences between coronavirus disease 2019 (COVID-19) and the flu (influenza) and learn about ways to prevent getting these diseases.
Asthma medications: Know your options
Learn more about the different categories of medications to help you control asthma symptoms.
Calcium and calcium supplements: Achieving the right balance
Considering calcium supplements? First figure out how much calcium you need. Then weigh the pros and cons of supplements.
Insulin and weight gain: Keep the pounds off
Understand why weight gain is linked to insulin treatment, and find out how to dodge those extra pounds while still managing your blood sugar.
How to take your pulse
Learn two ways to take an accurate pulse, or heart rate.
Long COVID: Lasting effects of COVID-19
COVID-19 can have lasting symptoms that affect many parts of the body. Learn more about the symptoms and effects of long COVID.
Breast cancer staging
Breast cancer staging helps your doctor select the most appropriate treatments.
Senior sex: Tips for older men
Sex isn't just for the young. Get tips for staying active, creative and satisfied as you age.
Amputation and diabetes: How to protect your feet
Find out who's at risk and what you can do to protect your feet from diabetes complications.
Hearing aids: How to choose the right one
Find out how to choose the right hearing aid.
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