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Dong quai can be used in herbal remedies to treat menstrual problems. Learn how to use dong quai as a tincture, powder or capsule.

Feverfew is used in herbal remedies to relieve headaches and joint inflammation. Learn more feverfew and how to make feverfew herbal tea.

Garlic can be used in a wide variety of herbal remedies from lowering cholesterol to curing colds. Learn about herbal remedies with garlic.

Can a tree grow and grow? Or can a tree grow only to the point that water transport limits it? Learn more about tree growth and the tallest trees.

Infrared heaters are somewhat complex. Learn about how infrared heaters work at HowStuffWorks.

Lipozene is a popular weight loss medication. Learn more about Lipozene at HowStuffWorks.

Can pets make you happy? Find out if pets can make you happy at HowStuffWorks.

Is Gross National Happiness a reliable economic indicator? Do happy workers improve the Gross National Product? Learn about Gross National Happiness.

How do you know when you should be driving with your windows down? Read this article to find out when you should be driving with your windows down.

How are sleep and heart disease related? Researchers have identified many ways sleep affects heart health. Read about sleep and heart disease here.

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