Nutrition basics
Learning Center
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.
White patch on skin: A cause for concern?
A small white patch on skin may have several causes, including eczema, psoriasis and vitiligo.
Whiplash
This common neck injury often is from a car crash. But other trauma can cause it too. Know the symptoms and how to treat it.
Wheezing
Wheezing: Symptom — Overview covers definition, possible causes of this symptom.
Water: How much should you drink every day?
Know how much water to drink to stay healthy and hydrated.
Vulvar varicosities during pregnancy: What can you do?
Vulvar varicosities can cause discomfort during pregnancy. Understand what causes this form of varicose veins and learn how to get relief.
Vocal cord dysfunction: Is it a type of asthma?
Vocal cord dysfunction and asthma cause similar symptoms, but they're not the same. Find out the difference between the two.
Video: Migraine aura
A migraine aura is usually visual, but can also be a sensory, motor or verbal disturbance. This animation shows what happens when you have a migraine aura.
Video: An asthma attack
What happens to your airways during an asthma attack?
Vaginal odor
Learn about causes of unpleasant or unusual odor from the vagina and when to seek care.
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