Nutrition basics
Learning Center
Underweight? See how to add pounds healthfully
If you're underweight and not happy about it, try these tips to help you achieve your goal weight.
Valerian: A safe and effective herbal sleep aid?
Valerian — Can this sleep aid help you sleep better?
Video: Endovenous thermal ablation
Video showing endovenous thermal ablation procedure to treat varicose veins.
Water: How much should you drink every day?
Know how much water to drink to stay healthy and hydrated.
Wrinkles
These lines in the skin are a natural part of aging that's also affected by sun exposure and smoking. Learn about prevention tips and treatment options.
Yerba mate: Is it safe to drink?
This herbal tea may help you feel more alert and focused, but find out what the possible health risks are.
Zinc for colds: The final word?
Everyone's heard of taking zinc for colds. But does it really work?
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