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Can air pollution affect heart health?
science.howstuffworks.com/environmental/green-science/air-pollution-heart-health.htm
Air pollution can negatively effect heart health. Learn about air pollution and its connection to heart health.
How can alcohol be good for your heart?
health.howstuffworks.com/diseases-conditions/cardiovascular/heart/alcohol-good-for-your-heart.htm
Alcohol may be good for your heart, according to some recent studies. Learn why alcohol could be good for the heart and find out why some doctors disagree.
Can pets make you happy?
science.howstuffworks.com/life/inside-the-mind/emotions/pets-happiness.htm
Can pets make you happy? Find out if pets can make you happy at HowStuffWorks.
How Volunteer Work for Teens Works
money.howstuffworks.com/economics/volunteer/opportunities/volunteer-work-for-teens.htm
Volunteer work for teens can help them get into great colleges. Learn all about volunteer work for teens at HowStuffWorks.
How to Volunteer for the Salvation Army
money.howstuffworks.com/economics/volunteer/opportunities/volunteer-for-salvation-army.htm
Ever wonder how to volunteer for the Salvation Army? Visit HowStuffWorks to learn how to volunteer for the Salvation Army and more.
5 Most Amazing Caves
science.howstuffworks.com/environmental/earth/geology/5-amazing-caves.htm
The Doll's Theater of Carlsbad Caverns looks otherworldly and took ages to form. What other incredible sights await us below ground?
How Soil Lamps Work
science.howstuffworks.com/environmental/green-tech/sustainable/soil-lamp.htm
Soil lamps are discussed in this article from HowStuffWorks. Learn about soil lamps.
Are there secret messages in da Vinci's 'The Last Supper'?
entertainment.howstuffworks.com/arts/artwork/last-supper-theory.htm
The 'Last Supper' painting by Da Vinci has generated many hidden-meaning theories. Could these theories be real? Learn more about the 'Last Supper'.
How Cord Cars Work
auto.howstuffworks.com/cord-cars.htm
Cord entered the 1920s with a car that was a success -- the Cord Auburn -- and one that should have been -- the Cord L-29. Read more in this article.
How Formica Works
home.howstuffworks.com/home-improvement/construction/materials/formica.htm
Formica is a surface material commonly used in home improvement projects. Learn more about formica at HowStuffWorks.