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Why is 90 minutes of exercise per week the ideal amount?

health.howstuffworks.com/wellness/diet-fitness/exercise/90-minutes-of-exercise.htm

If you get 90 minutes of exercise per week, you help your heart significantly. Learn why it's important to get at least 90 minutes of exercise per week.

Why Does the Phone Still Work When the Electricity Goes Out?

electronics.howstuffworks.com/question62.htm

The power goes out fairly often for most people, but your telephone, is always working. Learn why the phone works even when the electricity goes out.

Why do old couples look alike?

science.howstuffworks.com/life/genetic/old-couples.htm

Many old couples tend to look like each other due to shared life experiences, according to a recent study. Learn more about why older couples look alike.

5 Reasons Why the Bay of Pigs Invasion Failed

history.howstuffworks.com/world-history/bay-of-pigs.htm

It's been called one of American's biggest foreign policy failures. But why was it such a disaster? Let's count the ways.

Why would you put a smoothie in a bowl?

recipes.howstuffworks.com/smoothie-bowl.htm

Smoothies are perfectly fine slurped through a straw, so why would you need a bowl? Find out about this hearty twist on smoothies.

Why Some Coin Images Don't Face Left

money.howstuffworks.com/question775.htm

The coin images on a penny and nickel face a different direction than other U.S. coins, but why? Learn about coin images and coin faces in this article.

Why are green cars considered unlucky in NASCAR?

auto.howstuffworks.com/auto-racing/nascar/history/green-cars-unlucky-in-nascar.htm

Green race cars are considered unlucky on the NASCAR circuit. So why is the color green associated with failure in NASCAR racing? Find out.

Why is puberty coming earlier for girls today?

lifestyle.howstuffworks.com/family/parenting/tweens-teens/earlier-girls-puberty.htm

The earlier a girl's puberty occurs, the more likely she is to face unwanted pregnancies. Learn why the earlier a girls' puberty occurs, the greater the risk.

10 Reasons Why You Should Care About Net Neutrality

computer.howstuffworks.com/10-reasons-care-about-net-neutrality.htm

'Net neutrality' might make you yawn. But it represents a very important idea. Here are 10 reasons why you should care about it from HowStuffWorks.

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