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Why does nail polish turn your nails yellow?
health.howstuffworks.com/skin-care/nail-care/health/nails-turn-yellow.htm
Why does nail polish turn your nails yellow? Find out how nail polish works and why it turns your nails yellow at HowStuffWorks.
Why is exercise important for heart health?
Exercise is as important for heart health as eating right and avoiding stress. Learn about aerobic exercise and why it's so important for heart health.
T-62 Main Battle Tank
science.howstuffworks.com/t-62-main-battle-tank.htm
The T-62 Main Battle Tank was the second generation of Soviet MBTs, based on the T-54/T-55. Learn about the T-62 Main Battle Tank at HowStuffWorks.
How to Repaint Stained Walls
home.howstuffworks.com/home-improvement/repair/how-to-repaint-stained-walls.htm
Stains can be tricky to paint over, but it can be done. You'll need to do the proper prep and pick the right paint to get a professional look.
Is gingivitis deadly?
health.howstuffworks.com/wellness/oral-care/problems/is-gingivitis-deadly.htm
Is gingivitis deadly? Take a look as we break down the dangers of plaque and find out if gingivitis is deadly.
Why Breathing Through Your Nose Is Best
health.howstuffworks.com/human-body/systems/respiratory/nose-breathing.htm
We've probably all been breathing wrong our entire lives. Why is that? Experts suggest we should focus on breathing through our noses and most of us don't.
Deadly 1948 Donora Smog Launched the U.S. Clean Air Movement
A killer smog 70 years ago helped lead to the first federal air pollution laws.
Poisonous Death Cap Mushroom Spreads Over North America
science.howstuffworks.com/life/biology-fields/poisonous-death-cap-mushroom.htm
Amanita phalloides is non-native to the North American continent, introduced to California from Europe, and rapidly spreading.
The Dreaded Bradford Pear Tree Smell Isn't Very Pear-Like
home.howstuffworks.com/whats-that-smell-dreaded-bradford-pear.htm
Its blooms are lovely. But to many, the Bradford pear tree's smell and invasiveness are anything but.
What Are Santa Ana Winds?
science.howstuffworks.com/nature/climate-weather/atmospheric/santa-ana-winds.htm
These annual winds blow during Southern California's dangerous dry season, whipping up wildfires that can ravage thousands of acres.