Fitness basics
Learning Center
Diarrhea
Diarrhea: Symptom — Overview covers definition, causes of acute and chronic diarrhea.
Exercise and chronic disease: Get the facts
Find out about the benefits of working out with a long-lasting disease and how to exercise safely.
Exercise: 7 benefits of regular physical activity
Improve your heart health, mood, stamina and more with regular physical activity.
Exercise and illness: Work out with a cold?
Play it smart. Ease up on exercise if you have a cold.
Fitness program: 5 steps to get started
Starting a fitness program is easier than you might think. Follow these five steps.
Balance exercises
Balance exercises can improve your balance and help prevent falls. See how they're done.
How to tell if a loved one is abusing opioids
Anyone using opioids is at risk of misusing these medicines. Don't ignore signs of harmful or illegal use. Taking action could save a loved one's life.
Heart rate: What's normal?
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a problem.
How fit are you? See how you measure up
Find your fitness level with these simple fitness tests.
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.