Aerobic exercise
Learning Center
Eye dilation: Necessary with every eye exam?
Eye dilation is part of a comprehensive eye exam. How often you need it depends on your age and health risks.
Frequent sex: Does it protect against prostate cancer?
Some studies have suggested that frequent ejaculation may reduce the risk of prostate cancer. But other research hasn't supported this idea.
HPV infection: A cause of cancer in men?
Learn what types of cancer HPV can cause in men and how you can reduce your risk.
Hodgkin's vs. non-Hodgkin's lymphoma: What's the difference?
Learn how types of lymphomas are determined using lab tests to examine cancer cells.
How do COVID-19 antibody tests differ from diagnostic tests?
Antibody testing shows whether you've had the COVID-19 virus in the past. It's not the same as testing to see whether you have the virus now.
Induced lactation: Can I breastfeed my adopted baby?
With time and dedication, breastfeeding without pregnancy (induced lactation) might be possible.
Infant growth: What's normal?
Infant growth rates depend on various factors. Consider what's typical during baby's first year.
Is a home sperm test useful?
Using a home sperm test to check your fertility may not provide a clear answer.
Kids and exercise: How much activity do they need?
You know your kids should exercise, but how much? Find out and get ideas for helping children and adolescents be more physically active.
Latent autoimmune diabetes in adults (LADA): What is it?
Latent autoimmune diabetes in adults (LADA) is a slow-developing form of diabetes.
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