Nutritional supplements
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Vitamin D toxicity: What if you get too much?
Understand the risks of too much vitamin D, including a toxic reaction.
Answer
Warm-mist versus cool-mist humidifier: Which is better for a cold?
Warm-mist and cool-mist humidifiers are equally effective in humidifying the air.
Answer
What is hot yoga?
Hot yoga, also known as Bikram yoga, is an intense form of yoga performed in a heated studio.
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What is reflexology?
Reflexology is gaining popularity as a stress reliever, but does it work?
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What is wheatgrass? Why is it in my drink?
Wheatgrass is a popular addition to smoothies and other drinks. While it's a rich source of nutrients, it's not a disease cure-all.
Answer
Zinc for colds: The final word?
Everyone's heard of taking zinc for colds. But does it really work?
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