Fitness basics
Learning Center
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.
How fit are you? See how you measure up
Determine your fitness level with this simple fitness assessment.
Exercise: 7 benefits of regular physical activity
Improve your heart health, mood, stamina and more with regular physical activity.
Fitness program: 5 steps to get started
Starting a fitness program is easier than you might think. Follow these five steps.
Teens and social media use: What's the impact?
Find out how to help limit the negative impact of these popular apps on your teenager.
Sudden death in young people: Heart problems often blamed
Sudden cardiac death in young people is rare. It's not the same as sudden cardiac arrest. Learn about the risk factors and causes and when screening is needed.
Cast care: Do's and don'ts
Find out more about tips for keeping a cast safe — and your child comfortable — while an injury heals.
COVID-19: Long-term effects
Learn about the possible long-term effects of COVID-19.
Herd immunity and COVID-19: What you need to know
To protect groups of people over time, it helps to know what level of recovery or vaccination in a population makes it hard for a germ to spread.
HPV vaccine: Who needs it, how it works
Learn about how the HPV vaccine works, who needs it and what side effects to expect.
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