Aerobic exercise
Learning Center
Exercise intensity: How to measure it
To get the most out of exercising, aim for moderate to vigorous exercise intensity. See how to judge your exercise intensity.
Fall prevention: Simple tips to prevent falls
Stay safe and maintain your independence with these simple fall prevention measures.
Gastric bypass diet: What to eat after the surgery
Wondering what your diet will be like after your surgery? Learn which foods will help you heal and lose weight safely.
Germs: Understand and protect against bacteria, viruses and infections
Learn how to protect against bacteria, viruses and infections.
Headaches and hormones: What's the connection?
Headaches are part of life for many people. Understand how hormones can play a role.
Healthy sperm: Improving your fertility
You can take simple steps to have healthy sperm and improve your fertility.
How opioid use disorder occurs
Opioids act on the brain in powerful and potentially dangerous ways. Find out why no one is safe from opioid use disorder and learn what raises the risk.
How you hear
Your ears enable you to gather and interpret sounds from the world around you.
Joint protection for people with hand arthritis
Joint protection — photos showing joint protection techniques to avoid hand arthritis pain.
Kegel exercises for men: Understand the benefits
Men benefit from Kegel exercises too. Follow these tips to strengthen your pelvic floor muscles.
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