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Why does orange juice taste bad after you brush your teeth?

health.howstuffworks.com/mental-health/human-nature/perception/orange-juice-toothpaste.htm

Why does orange juice taste bad after you brush your teeth? Learn about the sense of taste and studies on why orange juice tastes bad after brushing.

How Can Light Kill Viruses?

science.howstuffworks.com/life/cellular-microscopic/light-virus.htm

Hand sanitizers can only get you so far in preventing a viral infection. Scientists are discovering how visible light can be used to destroy viruses. Learn about the laser technique and what it means for the future.

Can we plug the hole in the ozone layer?

science.howstuffworks.com/environmental/green-science/plug-hole-ozone-layer.htm

Plugging the hole in the ozone layer is explained in this article. Learn about plugging the hole in the ozone layer.

Set Your Dryer to Perm Press ... Meaning What, Exactly?

home.howstuffworks.com/steam-dryers-eliminate-the-need-for-ironing.htm

Get ready to set your machine to perm press ... meaning, what? We'll explain this handy-dandy dryer and washing machine setting.

Should dogs be kept exclusively indoors?

animals.howstuffworks.com/pets/should-dogs-be-kept-exclusively-indoors.htm

Are you wondering if dogs should be kept exclusively indoors? Check out this article to learn if dogs should be kept exclusively indoors.

What to Expect After a Loved One Dies

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Learn about dealing with the loss of a loved one with tips from Discovery Health.

How to Drain a Hot Water Tank

home.howstuffworks.com/how-to-drain-a-water-heater.htm

If you notice that your water heater is not functioning properly, it probably needs draining. While you can hire a plumber to do it for you, you can also learn how to drain a hot water tank yourself. Read on to save money and protect your water heater.

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