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What happens when pregnant women smoke?
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/issues/question551.htm
Pregnancy and smoking should never be mixed because of the harm it can cause to the developing baby. Learn more about pregnancy and smoking.
How Air-breathing Rockets Will Work
science.howstuffworks.com/air-breathing-rocket.htm
Air-breathing rockets have the potential to dramatically lower launch costs and may make space lots more accessible to normal people. See how it will work!
How to Stop Grinding Teeth
health.howstuffworks.com/wellness/oral-care/problems/how-to-stop-grinding-teeth.htm
Grinding your teeth, or bruxism, is the wear and tear on your teeth and joints of the jaw. Find out how to relax that jaw and ease the grind.
Why do GPS systems give wrong directions?
electronics.howstuffworks.com/gadgets/automotive/gps-system-wrong-direction.htm
GPS direction is determined by a combination of signals. Learn about GPS direction and why GPS systems sometimes route drivers down a closed road or an unsuitable drive.
The Breatharian Lifestyle: Can Humans Survive on Air Alone?
science.howstuffworks.com/innovation/edible-innovations/breatharian.htm
Breatharians believe they can live only on the energy from sunlight, and do not need nourishment from food. Read all about the practice of Breatharianism.
What determines the rhythm of your heart?
health.howstuffworks.com/human-body/systems/circulatory/heart-rhythm.htm
Your heart rhythm must be steady in order to be strong. Learn about your heart rhythm and find out what your heart does during every heartbeat.
Heart Pictures
health.howstuffworks.com/human-body/systems/circulatory/heart-pictures.htm
Take a look at these heart pictures to learn about the different parts of the heart and more. See our heart pictures to learn more.
What is St. Elmo's Fire?
science.howstuffworks.com/nature/climate-weather/atmospheric/st-elmo-fire.htm
St. Elmo's Fire is a weather phenomena that often appears on the masts of ships and the wings of airplanes. Learn about St. Elmo's Fire and plama.
Stored Energy Methods (Other Than Rechargeable Batteries)
science.howstuffworks.com/environmental/energy/question247.htm
One way to store energy is to use a battery, but what other ways can we store energy? Learn about different ways to store energy at HowStuffWorks.
Skim Milk: Natural Weight-Loss Foods
Milk is nicknamed "nature's most perfect food." Learn about skim milk, weight loss, high-protein foods, and healthy diets.