Aerobic exercise
Learning Center
Cold medicines for kids: What's the risk?
Cold medicines aren't recommended for young children. Here's why.
Fingernails: Do's and don'ts for healthy nails
Find out the signs of a problem with your fingernails, plus tips for taking care of them.
Aerobic exercise: How to warm up and cool down
Learn how to warm up and cool down the safe way.
Home birth: Know the pros and cons
Understand the possible risks and how to plan and prepare for a home birth.
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.
Forgiveness: Letting go of grudges and bitterness
Forgiveness and letting go can lead to healing and peace.
Walking: Make it count with activity trackers
If walking is your main form of physical activity, see how activity trackers can help you set and achieve your fitness goals.
Triglycerides: Why do they matter?
Like cholesterol, triglycerides can cause health problems. Here's how to lower your triglycerides.
Transgender facts
Know the basics about sex and gender, including common terms and definitions.
10,000 steps a day: Too low? Too high?
Work up to a goal of walking 10,000 steps each day, depending on your starting fitness level, for numerous health benefits.
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