Fitness basics
Learning Center
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.
Caffeine: How much is too much?
Is your caffeine habit causing problems? Find out how much is too much and if you need to curb your consumption.
COVID-19 vaccines: Get the facts
Find out about the COVID-19 vaccines, the benefits of COVID-19 vaccination and the possible side effects.
COVID-19 vaccines for kids: What you need to know
Learn about the safety and effectiveness of COVID-19 vaccines for kids, the possible side effects, and the benefits of vaccination.
COVID-19 travel advice
Concerned about COVID-19 when you travel? Follow these tips for safely flying, driving and staying at hotels.
Breast cancer prevention: How to reduce your risk
Find out what lifestyle changes can lower your risk of this type of cancer.
Breast cancer chemoprevention: Drugs that reduce risk
Learn about the drugs that can help prevent breast cancer in people at high risk.
Blood donation
Find out what to expect during blood donation and how your blood will be used to help others.
Belching, gas and bloating: Tips for reducing them
Find out how you can lessen uncomfortable belching, gas and bloating.
Balance exercises
Balance exercises can improve your balance and help prevent falls. See how they're done.
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