Fitness basics
Learning Center
How you hear
Your ears enable you to gather and interpret sounds from the world around you.
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 fit are you? See how you measure up
Find your fitness level with these simple fitness tests.
Healthy sperm: Improving your fertility
You can take simple steps to have healthy sperm and improve your fertility.
Headaches and hormones: What's the connection?
Headaches are part of life for many people. Understand how hormones can play a role.
Germs: Understand and protect against bacteria, viruses and infections
Learn how to protect against bacteria, viruses and infections.
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.
Fitness training: Elements of a well-rounded routine
Is your fitness training program complete? Here's help to make sure you have all the basics in your program.
Fitness program: 5 steps to get started
Starting a fitness program is easier than you might think. Follow these five steps.
Fall prevention: Simple tips to prevent falls
Stay safe and maintain your independence with these simple fall prevention measures.
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