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How Many Houseplants Do You Need for Good Indoor Air Quality?

home.howstuffworks.com/houseplants-indoor-air-quality.htm

For decades we've been told having houseplants can improve our indoor air quality. So, do you need to live in a veritable jungle for this to ring true?

Lava Tubes on Earth Could Prepare Us for Life on the Moon and Mars

science.howstuffworks.com/lava-tubes-on-earth-could-prepare-us-for-life-on-moon-and-mars.htm

By studying these geological formations here on Earth, we may be able to learn how to live on other planets.

Should Licensed Drivers Be Tested Periodically?

auto.howstuffworks.com/car-driving-safety/auto-safety-testing/should-licensed-drivers-be-tested-periodically.htm

Experts say there's no real benefit from retesting experienced drivers, except in special situations. HowStuffWorks looks at the reality.

Pet Therapy: Huggable Healthcare Workers

health.howstuffworks.com/medicine/tests-treatment/huggable-healthcare-workers.htm

Huggable healthcare workers like dogs and cats make a visit to the hospital more pleasant. Learn about huggable healthcare workers at Discovery Health.

Comfort Food: Guilty Pleasure?

health.howstuffworks.com/wellness/diet-fitness/information/comfort-food-guilty-pleasure.htm

Comfort foods and guilty pleasures could be your downfall if you're dieting. Learn about comfort foods and guilty pleasures at HowStuffWorks.

How Long Can Viruses Live on Surfaces?

science.howstuffworks.com/life/cellular-microscopic/long-can-viruses-live-on-surfaces.htm

Viruses need hosts to replicate and reproduce. So if a virus has no host, how long can it survive? It depends on a lot of factors.

Tree or No Tree? How Interfaith Families Navigate the Holidays

people.howstuffworks.com/culture-traditions/holidays-christmas/jewish-christian-families-navigate-holidays-news.htm

Interfaith families exist all over the world and this is the time of year when discussions focus on how to celebrate the holidays.

Virtual Influencers Are Unreal — Seriously, They Don't Physically Exist

science.howstuffworks.com/virtual-influencers.htm

Computer-generated artificial celebrities, created with cutting-edge technology, have become some of the hottest social media stars on the planet, selling everything from insurance to perfume.

What Are DMT Elves and Who Reports Seeing Them?

health.howstuffworks.com/wellness/drugs-alcohol/dmt-elves.htm

DMT users report seeing otherworldly beings or "DMT entities," commonly described as "DMT elves." What's the science behind these reports?

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